diff --git a/dist/sorts/tablesort.date.min.js b/dist/sorts/tablesort.date.min.js
index 03190fb..f705290 100644
--- a/dist/sorts/tablesort.date.min.js
+++ b/dist/sorts/tablesort.date.min.js
@@ -1,5 +1,6 @@
 /*!
- * tablesort v5.0.2 (2017-11-12)
+ * tablesort v5.1.0 (2018-09-14)
  * http://tristen.ca/tablesort/demo/
- * Copyright (c) 2017 ; Licensed MIT
-*/!function(){var a=function(a){return a=a.replace(/\-/g,"/"),a=a.replace(/(\d{1,2})[\/\-](\d{1,2})[\/\-](\d{2})/,"$1/$2/$3"),new Date(a).getTime()||-1};Tablesort.extend("date",function(b){return(b.search(/(Mon|Tue|Wed|Thu|Fri|Sat|Sun)\.?\,?\s*/i)!==-1||b.search(/\d{1,2}[\/\-]\d{1,2}[\/\-]\d{2,4}/)!==-1||b.search(/(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)/i)!==-1)&&!isNaN(a(b))},function(b,c){return b=b.toLowerCase(),c=c.toLowerCase(),a(c)-a(b)})}();
\ No newline at end of file
+ * Copyright (c) 2018 ; Licensed MIT
+*/
+!function(){var a=function(a){return a=a.replace(/\-/g,"/"),a=a.replace(/(\d{1,2})[\/\-](\d{1,2})[\/\-](\d{2,4})/,"$3-$2-$1"),new Date(a).getTime()||-1};Tablesort.extend("date",function(b){return(-1!==b.search(/(Mon|Tue|Wed|Thu|Fri|Sat|Sun)\.?\,?\s*/i)||-1!==b.search(/\d{1,2}[\/\-]\d{1,2}[\/\-]\d{2,4}/)||-1!==b.search(/(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)/i))&&!isNaN(a(b))},function(b,c){return b=b.toLowerCase(),c=c.toLowerCase(),a(c)-a(b)})}();
\ No newline at end of file
diff --git a/dist/sorts/tablesort.dotsep.min.js b/dist/sorts/tablesort.dotsep.min.js
index 7aeb86a..30cb976 100644
--- a/dist/sorts/tablesort.dotsep.min.js
+++ b/dist/sorts/tablesort.dotsep.min.js
@@ -1,5 +1,6 @@
 /*!
- * tablesort v5.0.2 (2017-11-12)
+ * tablesort v5.1.0 (2018-09-14)
  * http://tristen.ca/tablesort/demo/
- * Copyright (c) 2017 ; Licensed MIT
-*/Tablesort.extend("dotsep",function(a){return/^(\d+\.)+\d+$/.test(a)},function(a,b){a=a.split("."),b=b.split(".");for(var c,d,e=0,f=a.length;e<f;e++)if(c=parseInt(a[e],10),d=parseInt(b[e],10),c!==d){if(c>d)return-1;if(c<d)return 1}return 0});
\ No newline at end of file
+ * Copyright (c) 2018 ; Licensed MIT
+*/
+Tablesort.extend("dotsep",function(a){return/^(\d+\.)+\d+$/.test(a)},function(a,b){a=a.split("."),b=b.split(".");for(var c,d,e=0,f=a.length;e<f;e++)if(c=parseInt(a[e],10),d=parseInt(b[e],10),c!==d){if(c>d)return-1;if(c<d)return 1}return 0});
\ No newline at end of file
diff --git a/dist/sorts/tablesort.filesize.min.js b/dist/sorts/tablesort.filesize.min.js
index a095e8a..416c4b7 100644
--- a/dist/sorts/tablesort.filesize.min.js
+++ b/dist/sorts/tablesort.filesize.min.js
@@ -1,5 +1,6 @@
 /*!
- * tablesort v5.0.2 (2017-11-12)
+ * tablesort v5.1.0 (2018-09-14)
  * http://tristen.ca/tablesort/demo/
- * Copyright (c) 2017 ; Licensed MIT
-*/!function(){var a=function(a,b){return a=parseFloat(a),b=parseFloat(b),a=isNaN(a)?0:a,b=isNaN(b)?0:b,a-b},b=function(a){return a.replace(/[^\-?0-9.]/g,"")},c=function(a){a=a.toLowerCase();var b="i"===a[1]?1024:1e3;switch(a[0]){case"k":return Math.pow(b,2);case"m":return Math.pow(b,3);case"g":return Math.pow(b,4);case"t":return Math.pow(b,5);case"p":return Math.pow(b,6);case"e":return Math.pow(b,7);case"z":return Math.pow(b,8);case"y":return Math.pow(b,9);default:return b}},d=function(a){var d=a.match(/^(\d+(\.\d+)?) ?((K|M|G|T|P|E|Z|Y|B$)i?B?)$/i),e=parseFloat(b(d[1])),f=d[3];return e*c(f)};Tablesort.extend("filesize",function(a){return/^\d+(\.\d+)? ?(K|M|G|T|P|E|Z|Y|B$)i?B?$/i.test(a)},function(b,c){return b=d(b),c=d(c),a(c,b)})}();
\ No newline at end of file
+ * Copyright (c) 2018 ; Licensed MIT
+*/
+!function(){var a=function(a,b){return a=parseFloat(a),b=parseFloat(b),a=isNaN(a)?0:a,b=isNaN(b)?0:b,a-b},b=function(a){return a.replace(/[^\-?0-9.]/g,"")},c=function(a){a=a.toLowerCase();var b="i"===a[1]?1024:1e3;switch(a[0]){case"k":return Math.pow(b,2);case"m":return Math.pow(b,3);case"g":return Math.pow(b,4);case"t":return Math.pow(b,5);case"p":return Math.pow(b,6);case"e":return Math.pow(b,7);case"z":return Math.pow(b,8);case"y":return Math.pow(b,9);default:return b}},d=function(a){var d=a.match(/^(\d+(\.\d+)?) ?((K|M|G|T|P|E|Z|Y|B$)i?B?)$/i),e=parseFloat(b(d[1])),f=d[3];return e*c(f)};Tablesort.extend("filesize",function(a){return/^\d+(\.\d+)? ?(K|M|G|T|P|E|Z|Y|B$)i?B?$/i.test(a)},function(b,c){return b=d(b),c=d(c),a(c,b)})}();
\ No newline at end of file
diff --git a/dist/sorts/tablesort.monthname.min.js b/dist/sorts/tablesort.monthname.min.js
index 4d2276d..d4ac8dd 100644
--- a/dist/sorts/tablesort.monthname.min.js
+++ b/dist/sorts/tablesort.monthname.min.js
@@ -1,5 +1,6 @@
 /*!
- * tablesort v5.0.2 (2017-11-12)
+ * tablesort v5.1.0 (2018-09-14)
  * http://tristen.ca/tablesort/demo/
- * Copyright (c) 2017 ; Licensed MIT
-*/!function(){Tablesort.extend("monthname",function(a){return a.search(/(January|February|March|April|May|June|July|August|September|October|November|December)/i)!==-1},function(a,b){var c=["January","February","March","April","May","June","July","August","September","October","November","December"];return c.indexOf(b)-c.indexOf(a)})}();
\ No newline at end of file
+ * Copyright (c) 2018 ; Licensed MIT
+*/
+!function(){Tablesort.extend("monthname",function(a){return-1!==a.search(/(January|February|March|April|May|June|July|August|September|October|November|December)/i)},function(a,b){var c=["January","February","March","April","May","June","July","August","September","October","November","December"];return c.indexOf(b)-c.indexOf(a)})}();
\ No newline at end of file
diff --git a/dist/sorts/tablesort.number.min.js b/dist/sorts/tablesort.number.min.js
index ffb0e85..f700dc1 100644
--- a/dist/sorts/tablesort.number.min.js
+++ b/dist/sorts/tablesort.number.min.js
@@ -1,5 +1,6 @@
 /*!
- * tablesort v5.0.2 (2017-11-12)
+ * tablesort v5.1.0 (2018-09-14)
  * http://tristen.ca/tablesort/demo/
- * Copyright (c) 2017 ; Licensed MIT
-*/!function(){var a=function(a){return a.replace(/[^\-?0-9.]/g,"")},b=function(a,b){return a=parseFloat(a),b=parseFloat(b),a=isNaN(a)?0:a,b=isNaN(b)?0:b,a-b};Tablesort.extend("number",function(a){return a.match(/^[-+]?[£\x24Û¢´€]?\d+\s*([,\.]\d{0,2})/)||a.match(/^[-+]?\d+\s*([,\.]\d{0,2})?[£\x24Û¢´€]/)||a.match(/^[-+]?(\d)*-?([,\.]){0,1}-?(\d)+([E,e][\-+][\d]+)?%?$/)},function(c,d){return c=a(c),d=a(d),b(d,c)})}();
\ No newline at end of file
+ * Copyright (c) 2018 ; Licensed MIT
+*/
+!function(){var a=function(a){return a.replace(/[^\-?0-9.]/g,"")},b=function(a,b){return a=parseFloat(a),b=parseFloat(b),a=isNaN(a)?0:a,b=isNaN(b)?0:b,a-b};Tablesort.extend("number",function(a){return a.match(/^[-+]?[£\x24Û¢´€]?\d+\s*([,\.]\d{0,2})/)||a.match(/^[-+]?\d+\s*([,\.]\d{0,2})?[£\x24Û¢´€]/)||a.match(/^[-+]?(\d)*-?([,\.]){0,1}-?(\d)+([E,e][\-+][\d]+)?%?$/)},function(c,d){return c=a(c),d=a(d),b(d,c)})}();
\ No newline at end of file
diff --git a/dist/tablesort.min.js b/dist/tablesort.min.js
index 2931090..09de2ae 100644
--- a/dist/tablesort.min.js
+++ b/dist/tablesort.min.js
@@ -1,5 +1,6 @@
 /*!
- * tablesort v5.0.2 (2017-11-12)
+ * tablesort v5.1.0 (2018-09-14)
  * http://tristen.ca/tablesort/demo/
- * Copyright (c) 2017 ; Licensed MIT
-*/!function(){function a(b,c){if(!(this instanceof a))return new a(b,c);if(!b||"TABLE"!==b.tagName)throw new Error("Element must be a table");this.init(b,c||{})}var b=[],c=function(a){var b;return window.CustomEvent&&"function"==typeof window.CustomEvent?b=new CustomEvent(a):(b=document.createEvent("CustomEvent"),b.initCustomEvent(a,!1,!1,void 0)),b},d=function(a){return a.getAttribute("data-sort")||a.textContent||a.innerText||""},e=function(a,b){return a=a.trim().toLowerCase(),b=b.trim().toLowerCase(),a===b?0:a<b?1:-1},f=function(a,b){return function(c,d){var e=a(c.td,d.td);return 0===e?b?d.index-c.index:c.index-d.index:e}};a.extend=function(a,c,d){if("function"!=typeof c||"function"!=typeof d)throw new Error("Pattern and sort must be a function");b.push({name:a,pattern:c,sort:d})},a.prototype={init:function(a,b){var c,d,e,f,g=this;if(g.table=a,g.thead=!1,g.options=b,a.rows&&a.rows.length>0)if(a.tHead&&a.tHead.rows.length>0){for(e=0;e<a.tHead.rows.length;e++)if("thead"===a.tHead.rows[e].getAttribute("data-sort-method")){c=a.tHead.rows[e];break}c||(c=a.tHead.rows[a.tHead.rows.length-1]),g.thead=!0}else c=a.rows[0];if(c){var h=function(){g.current&&g.current!==this&&g.current.removeAttribute("aria-sort"),g.current=this,g.sortTable(this)};for(e=0;e<c.cells.length;e++)f=c.cells[e],f.setAttribute("role","columnheader"),"none"!==f.getAttribute("data-sort-method")&&(f.tabindex=0,f.addEventListener("click",h,!1),null!==f.getAttribute("data-sort-default")&&(d=f));d&&(g.current=d,g.sortTable(d))}},sortTable:function(a,g){var h=this,i=a.cellIndex,j=e,k="",l=[],m=h.thead?0:1,n=a.getAttribute("data-sort-method"),o=a.getAttribute("aria-sort");if(h.table.dispatchEvent(c("beforeSort")),g||(o="ascending"===o?"descending":"descending"===o?"ascending":h.options.descending?"descending":"ascending",a.setAttribute("aria-sort",o)),!(h.table.rows.length<2)){if(!n){for(;l.length<3&&m<h.table.tBodies[0].rows.length;)k=d(h.table.tBodies[0].rows[m].cells[i]),k=k.trim(),k.length>0&&l.push(k),m++;if(!l)return}for(m=0;m<b.length;m++)if(k=b[m],n){if(k.name===n){j=k.sort;break}}else if(l.every(k.pattern)){j=k.sort;break}for(h.col=i,m=0;m<h.table.tBodies.length;m++){var p,q=[],r={},s=0,t=0;if(!(h.table.tBodies[m].rows.length<2)){for(p=0;p<h.table.tBodies[m].rows.length;p++)k=h.table.tBodies[m].rows[p],"none"===k.getAttribute("data-sort-method")?r[s]=k:q.push({tr:k,td:d(k.cells[h.col]),index:s}),s++;for("descending"===o?q.sort(f(j,!0)):(q.sort(f(j,!1)),q.reverse()),p=0;p<s;p++)r[p]?(k=r[p],t++):k=q[p-t].tr,h.table.tBodies[m].appendChild(k)}}h.table.dispatchEvent(c("afterSort"))}},refresh:function(){void 0!==this.current&&this.sortTable(this.current,!0)}},"undefined"!=typeof module&&module.exports?module.exports=a:window.Tablesort=a}();
\ No newline at end of file
+ * Copyright (c) 2018 ; Licensed MIT
+*/
+!function(){function a(b,c){if(!(this instanceof a))return new a(b,c);if(!b||"TABLE"!==b.tagName)throw new Error("Element must be a table");this.init(b,c||{})}var b=[],c=function(a){var b;return window.CustomEvent&&"function"==typeof window.CustomEvent?b=new CustomEvent(a):(b=document.createEvent("CustomEvent"),b.initCustomEvent(a,!1,!1,void 0)),b},d=function(a){return a.getAttribute("data-sort")||a.textContent||a.innerText||""},e=function(a,b){return a=a.trim().toLowerCase(),b=b.trim().toLowerCase(),a===b?0:a<b?1:-1},f=function(a,b){return function(c,d){var e=a(c.td,d.td);return 0===e?b?d.index-c.index:c.index-d.index:e}};a.extend=function(a,c,d){if("function"!=typeof c||"function"!=typeof d)throw new Error("Pattern and sort must be a function");b.push({name:a,pattern:c,sort:d})},a.prototype={init:function(a,b){var c,d,e,f,g=this;if(g.table=a,g.thead=!1,g.options=b,a.rows&&a.rows.length>0)if(a.tHead&&a.tHead.rows.length>0){for(e=0;e<a.tHead.rows.length;e++)if("thead"===a.tHead.rows[e].getAttribute("data-sort-method")){c=a.tHead.rows[e];break}c||(c=a.tHead.rows[a.tHead.rows.length-1]),g.thead=!0}else c=a.rows[0];if(c){var h=function(){g.current&&g.current!==this&&g.current.removeAttribute("aria-sort"),g.current=this,g.sortTable(this)};for(e=0;e<c.cells.length;e++)f=c.cells[e],f.setAttribute("role","columnheader"),"none"!==f.getAttribute("data-sort-method")&&(f.tabindex=0,f.addEventListener("click",h,!1),null!==f.getAttribute("data-sort-default")&&(d=f));d&&(g.current=d,g.sortTable(d))}},sortTable:function(a,g){var h=this,i=a.cellIndex,j=e,k="",l=[],m=h.thead?0:1,n=a.getAttribute("data-sort-method"),o=a.getAttribute("aria-sort");if(h.table.dispatchEvent(c("beforeSort")),g||(o="ascending"===o?"descending":"descending"===o?"ascending":h.options.descending?"descending":"ascending",a.setAttribute("aria-sort",o)),!(h.table.rows.length<2)){if(!n){for(;l.length<3&&m<h.table.tBodies[0].rows.length;)k=d(h.table.tBodies[0].rows[m].cells[i]),k=k.trim(),k.length>0&&l.push(k),m++;if(!l)return}for(m=0;m<b.length;m++)if(k=b[m],n){if(k.name===n){j=k.sort;break}}else if(l.every(k.pattern)){j=k.sort;break}for(h.col=i,m=0;m<h.table.tBodies.length;m++){var p,q=[],r={},s=0,t=0;if(!(h.table.tBodies[m].rows.length<2)){for(p=0;p<h.table.tBodies[m].rows.length;p++)k=h.table.tBodies[m].rows[p],"none"===k.getAttribute("data-sort-method")?r[s]=k:q.push({tr:k,td:d(k.cells[h.col]),index:s}),s++;for("descending"===o?q.sort(f(j,!0)):(q.sort(f(j,!1)),q.reverse()),p=0;p<s;p++)r[p]?(k=r[p],t++):k=q[p-t].tr,h.table.tBodies[m].appendChild(k)}}h.table.dispatchEvent(c("afterSort"))}},refresh:function(){void 0!==this.current&&this.sortTable(this.current,!0)}},"undefined"!=typeof module&&module.exports?module.exports=a:window.Tablesort=a}();
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 0602491..af3c1ed 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "tablesort",
-  "version": "5.0.2",
+  "version": "5.1.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -10,10 +10,10 @@
       "integrity": "sha1-RBT/dKUIecII7l/cgm4ywwNUnto=",
       "dev": true,
       "requires": {
-        "co": "4.6.0",
-        "fast-deep-equal": "1.0.0",
-        "fast-json-stable-stringify": "2.0.0",
-        "json-schema-traverse": "0.3.1"
+        "co": "^4.6.0",
+        "fast-deep-equal": "^1.0.0",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.3.0"
       }
     },
     "co": {
@@ -28,8 +28,8 @@
       "integrity": "sha1-g6c/L+pWmJj7c3GTyPhzyvbUXJQ=",
       "dev": true,
       "requires": {
-        "foreach": "2.0.5",
-        "object-keys": "1.0.11"
+        "foreach": "^2.0.5",
+        "object-keys": "^1.0.8"
       }
     },
     "fast-deep-equal": {
@@ -50,7 +50,7 @@
       "integrity": "sha1-eUCCQksX9qSyoO2jn522lI7kvo0=",
       "dev": true,
       "requires": {
-        "debug": "2.0.0",
+        "debug": "~2.0.0",
         "escape-html": "1.0.1"
       },
       "dependencies": {
@@ -89,9 +89,9 @@
       "integrity": "sha1-b7lPvXGIUwbXPRXMSX/kzE7NRL8=",
       "dev": true,
       "requires": {
-        "asynckit": "0.4.0",
-        "combined-stream": "1.0.5",
-        "mime-types": "2.1.17"
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.5",
+        "mime-types": "^2.1.12"
       },
       "dependencies": {
         "asynckit": {
@@ -106,7 +106,7 @@
           "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk=",
           "dev": true,
           "requires": {
-            "delayed-stream": "1.0.0"
+            "delayed-stream": "~1.0.0"
           }
         },
         "delayed-stream": {
@@ -127,7 +127,7 @@
           "integrity": "sha1-Cdejk/A+mVp5+K+Fe3Cp4KsWVXo=",
           "dev": true,
           "requires": {
-            "mime-db": "1.30.0"
+            "mime-db": "~1.30.0"
           }
         }
       }
@@ -138,9 +138,9 @@
       "integrity": "sha1-zTzl9+fLYUWIP8rjGR6Yd/hYeVA=",
       "dev": true,
       "requires": {
-        "graceful-fs": "4.1.11",
-        "jsonfile": "2.4.0",
-        "klaw": "1.3.1"
+        "graceful-fs": "^4.1.2",
+        "jsonfile": "^2.1.0",
+        "klaw": "^1.0.0"
       },
       "dependencies": {
         "graceful-fs": {
@@ -155,7 +155,7 @@
           "integrity": "sha1-NzaitCi4e72gzIO1P6PWM6NcKug=",
           "dev": true,
           "requires": {
-            "graceful-fs": "4.1.11"
+            "graceful-fs": "^4.1.6"
           }
         },
         "klaw": {
@@ -164,7 +164,7 @@
           "integrity": "sha1-QIhDO0azsbolnXh4XY6W9zugJDk=",
           "dev": true,
           "requires": {
-            "graceful-fs": "4.1.11"
+            "graceful-fs": "^4.1.9"
           }
         }
       }
@@ -181,22 +181,22 @@
       "integrity": "sha1-6HeHZOlEsY8yuw8QuQeEdcnftWs=",
       "dev": true,
       "requires": {
-        "coffee-script": "1.10.0",
-        "dateformat": "1.0.12",
-        "eventemitter2": "0.4.14",
-        "exit": "0.1.2",
-        "findup-sync": "0.3.0",
-        "glob": "7.0.6",
-        "grunt-cli": "1.2.0",
-        "grunt-known-options": "1.1.0",
-        "grunt-legacy-log": "1.0.0",
-        "grunt-legacy-util": "1.0.0",
-        "iconv-lite": "0.4.19",
-        "js-yaml": "3.5.5",
-        "minimatch": "3.0.4",
-        "nopt": "3.0.6",
-        "path-is-absolute": "1.0.1",
-        "rimraf": "2.2.8"
+        "coffee-script": "~1.10.0",
+        "dateformat": "~1.0.12",
+        "eventemitter2": "~0.4.13",
+        "exit": "~0.1.1",
+        "findup-sync": "~0.3.0",
+        "glob": "~7.0.0",
+        "grunt-cli": "~1.2.0",
+        "grunt-known-options": "~1.1.0",
+        "grunt-legacy-log": "~1.0.0",
+        "grunt-legacy-util": "~1.0.0",
+        "iconv-lite": "~0.4.13",
+        "js-yaml": "~3.5.2",
+        "minimatch": "~3.0.0",
+        "nopt": "~3.0.6",
+        "path-is-absolute": "~1.0.0",
+        "rimraf": "~2.2.8"
       },
       "dependencies": {
         "abbrev": {
@@ -223,7 +223,7 @@
           "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
           "dev": true,
           "requires": {
-            "sprintf-js": "1.0.3"
+            "sprintf-js": "~1.0.2"
           }
         },
         "array-find-index": {
@@ -250,7 +250,7 @@
           "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI=",
           "dev": true,
           "requires": {
-            "balanced-match": "1.0.0",
+            "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
           }
         },
@@ -272,8 +272,8 @@
           "integrity": "sha1-MIvur/3ygRkFHvodkyITyRuPkuc=",
           "dev": true,
           "requires": {
-            "camelcase": "2.1.1",
-            "map-obj": "1.0.1"
+            "camelcase": "^2.0.0",
+            "map-obj": "^1.0.0"
           }
         },
         "chalk": {
@@ -282,11 +282,11 @@
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@@ -669,7 +669,7 @@
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@@ -788,8 +788,8 @@
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@@ -825,7 +825,7 @@
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@@ -852,7 +852,7 @@
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@@ -861,7 +861,7 @@
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@@ -870,7 +870,7 @@
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@@ -897,8 +897,8 @@
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@@ -907,7 +907,7 @@
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@@ -924,10 +924,10 @@
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@@ -948,7 +948,7 @@
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@@ -964,7 +964,7 @@
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@@ -973,11 +973,11 @@
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@@ -992,8 +992,8 @@
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@@ -1017,7 +1017,7 @@
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@@ -1026,7 +1026,7 @@
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@@ -1055,11 +1055,11 @@
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@@ -1068,9 +1068,9 @@
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-            "longest": "1.0.1",
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@@ -1097,7 +1097,7 @@
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@@ -1118,8 +1118,8 @@
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@@ -1128,8 +1128,8 @@
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-            "lazy-cache": "1.0.4"
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@@ -1138,11 +1138,11 @@
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@@ -2001,7 +2001,7 @@
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@@ -2018,28 +2018,28 @@
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-        "uuid": "3.1.0"
+        "aws-sign2": "~0.7.0",
+        "aws4": "^1.6.0",
+        "caseless": "~0.12.0",
+        "combined-stream": "~1.0.5",
+        "extend": "~3.0.1",
+        "forever-agent": "~0.6.1",
+        "form-data": "~2.3.1",
+        "har-validator": "~5.0.3",
+        "hawk": "~6.0.2",
+        "http-signature": "~1.2.0",
+        "is-typedarray": "~1.0.0",
+        "isstream": "~0.1.2",
+        "json-stringify-safe": "~5.0.1",
+        "mime-types": "~2.1.17",
+        "oauth-sign": "~0.8.2",
+        "performance-now": "^2.1.0",
+        "qs": "~6.5.1",
+        "safe-buffer": "^5.1.1",
+        "stringstream": "~0.0.5",
+        "tough-cookie": "~2.3.3",
+        "tunnel-agent": "^0.6.0",
+        "uuid": "^3.1.0"
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@@ -2073,7 +2073,7 @@
           "dev": true,
           "optional": true,
           "requires": {
-            "tweetnacl": "0.14.5"
+            "tweetnacl": "^0.14.3"
           }
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@@ -2082,7 +2082,7 @@
           "integrity": "sha1-T4owBctKfjiJ90kDD9JbluAdLjE=",
           "dev": true,
           "requires": {
-            "hoek": "4.2.0"
+            "hoek": "4.x.x"
           }
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@@ -2097,7 +2097,7 @@
           "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk=",
           "dev": true,
           "requires": {
-            "delayed-stream": "1.0.0"
+            "delayed-stream": "~1.0.0"
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@@ -2112,7 +2112,7 @@
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           "dev": true,
           "requires": {
-            "boom": "5.2.0"
+            "boom": "5.x.x"
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@@ -2121,7 +2121,7 @@
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               "dev": true,
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-                "hoek": "4.2.0"
+                "hoek": "4.x.x"
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@@ -2132,7 +2132,7 @@
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           "dev": true,
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+            "assert-plus": "^1.0.0"
           }
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@@ -2148,7 +2148,7 @@
           "dev": true,
           "optional": true,
           "requires": {
-            "jsbn": "0.1.1"
+            "jsbn": "~0.1.0"
           }
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         "extend": {
@@ -2175,7 +2175,7 @@
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           "dev": true,
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-            "assert-plus": "1.0.0"
+            "assert-plus": "^1.0.0"
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@@ -2184,8 +2184,8 @@
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           "dev": true,
           "requires": {
-            "ajv": "5.3.0",
-            "har-schema": "2.0.0"
+            "ajv": "^5.1.0",
+            "har-schema": "^2.0.0"
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@@ -2194,10 +2194,10 @@
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-            "cryptiles": "3.1.2",
-            "hoek": "4.2.0",
-            "sntp": "2.1.0"
+            "boom": "4.x.x",
+            "cryptiles": "3.x.x",
+            "hoek": "4.x.x",
+            "sntp": "2.x.x"
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@@ -2212,9 +2212,9 @@
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           "dev": true,
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-            "assert-plus": "1.0.0",
-            "jsprim": "1.4.1",
-            "sshpk": "1.13.1"
+            "assert-plus": "^1.0.0",
+            "jsprim": "^1.2.2",
+            "sshpk": "^1.7.0"
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@@ -2272,7 +2272,7 @@
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           "dev": true,
           "requires": {
-            "mime-db": "1.30.0"
+            "mime-db": "~1.30.0"
           }
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@@ -2287,7 +2287,7 @@
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           "dev": true,
           "requires": {
-            "hoek": "4.2.0"
+            "hoek": "4.x.x"
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@@ -2296,14 +2296,14 @@
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           "dev": true,
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-            "assert-plus": "1.0.0",
-            "bcrypt-pbkdf": "1.0.1",
-            "dashdash": "1.14.1",
-            "ecc-jsbn": "0.1.1",
-            "getpass": "0.1.7",
-            "jsbn": "0.1.1",
-            "tweetnacl": "0.14.5"
+            "asn1": "~0.2.3",
+            "assert-plus": "^1.0.0",
+            "bcrypt-pbkdf": "^1.0.0",
+            "dashdash": "^1.12.0",
+            "ecc-jsbn": "~0.1.1",
+            "getpass": "^0.1.1",
+            "jsbn": "~0.1.0",
+            "tweetnacl": "~0.14.0"
           }
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@@ -2318,7 +2318,7 @@
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           "dev": true,
           "requires": {
-            "safe-buffer": "5.1.1"
+            "safe-buffer": "^5.0.1"
           }
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@@ -2334,9 +2334,9 @@
           "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
           "dev": true,
           "requires": {
-            "assert-plus": "1.0.0",
+            "assert-plus": "^1.0.0",
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-            "extsprintf": "1.3.0"
+            "extsprintf": "^1.2.0"
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@@ -2354,7 +2354,7 @@
       "dev": true,
       "requires": {
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-        "parseurl": "1.3.2",
+        "parseurl": "~1.3.0",
         "send": "0.9.3",
         "utils-merge": "1.0.0"
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@@ -2452,16 +2452,16 @@
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           "dev": true,
           "requires": {
-            "debug": "2.0.0",
+            "debug": "~2.0.0",
             "depd": "0.4.5",
             "destroy": "1.0.3",
             "escape-html": "1.0.1",
-            "etag": "1.4.0",
+            "etag": "~1.4.0",
             "fresh": "0.2.4",
             "mime": "1.2.11",
             "ms": "0.6.2",
             "on-finished": "2.1.0",
-            "range-parser": "1.0.3"
+            "range-parser": "~1.0.2"
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@@ -2478,11 +2478,11 @@
       "integrity": "sha1-FK2zmgX5ZMgR73B1lzINO7K7K9o=",
       "dev": true,
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-        "duplexer": "0.1.1",
-        "pretty-ms": "1.4.0",
-        "tap-parser": "0.7.0",
-        "through2": "0.6.5"
+        "chalk": "^1.0.0",
+        "duplexer": "^0.1.1",
+        "pretty-ms": "^1.0.0",
+        "tap-parser": "^0.7.0",
+        "through2": "^0.6.3"
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@@ -2521,8 +2521,8 @@
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           "dev": true,
           "requires": {
-            "camelcase": "2.1.1",
-            "map-obj": "1.0.1"
+            "camelcase": "^2.0.0",
+            "map-obj": "^1.0.0"
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@@ -2531,11 +2531,11 @@
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
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-            "escape-string-regexp": "1.0.5",
-            "has-ansi": "2.0.0",
-            "strip-ansi": "3.0.1",
-            "supports-color": "2.0.0"
+            "ansi-styles": "^2.2.1",
+            "escape-string-regexp": "^1.0.2",
+            "has-ansi": "^2.0.0",
+            "strip-ansi": "^3.0.0",
+            "supports-color": "^2.0.0"
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@@ -2550,7 +2550,7 @@
           "integrity": "sha1-mI3zP+qxke95mmE2nddsF635V+o=",
           "dev": true,
           "requires": {
-            "array-find-index": "1.0.2"
+            "array-find-index": "^1.0.1"
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@@ -2571,7 +2571,7 @@
           "integrity": "sha1-+FWobOYa3E6GIcPNoh56dhLDqNw=",
           "dev": true,
           "requires": {
-            "is-arrayish": "0.2.1"
+            "is-arrayish": "^0.2.1"
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@@ -2586,8 +2586,8 @@
           "integrity": "sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=",
           "dev": true,
           "requires": {
-            "path-exists": "2.1.0",
-            "pinkie-promise": "2.0.1"
+            "path-exists": "^2.0.0",
+            "pinkie-promise": "^2.0.0"
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@@ -2608,7 +2608,7 @@
           "integrity": "sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=",
           "dev": true,
           "requires": {
-            "ansi-regex": "2.1.1"
+            "ansi-regex": "^2.0.0"
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         "hosted-git-info": {
@@ -2623,7 +2623,7 @@
           "integrity": "sha1-ji1INIdCEhtKghi3oTfppSBJ3IA=",
           "dev": true,
           "requires": {
-            "repeating": "2.0.1"
+            "repeating": "^2.0.0"
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@@ -2644,7 +2644,7 @@
           "integrity": "sha1-VAVy0096wxGfj3bDDLwbHgN6/74=",
           "dev": true,
           "requires": {
-            "builtin-modules": "1.1.1"
+            "builtin-modules": "^1.0.0"
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@@ -2653,7 +2653,7 @@
           "integrity": "sha1-zGZ3aVYCvlUO8R6LSqYwU0K20Ko=",
           "dev": true,
           "requires": {
-            "number-is-nan": "1.0.1"
+            "number-is-nan": "^1.0.0"
           }
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@@ -2674,11 +2674,11 @@
           "integrity": "sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=",
           "dev": true,
           "requires": {
-            "graceful-fs": "4.1.11",
-            "parse-json": "2.2.0",
-            "pify": "2.3.0",
-            "pinkie-promise": "2.0.1",
-            "strip-bom": "2.0.0"
+            "graceful-fs": "^4.1.2",
+            "parse-json": "^2.2.0",
+            "pify": "^2.0.0",
+            "pinkie-promise": "^2.0.0",
+            "strip-bom": "^2.0.0"
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@@ -2687,8 +2687,8 @@
           "integrity": "sha1-W0b4AUft7leIcPCG0Eghz5mOVR8=",
           "dev": true,
           "requires": {
-            "currently-unhandled": "0.4.1",
-            "signal-exit": "3.0.2"
+            "currently-unhandled": "^0.4.1",
+            "signal-exit": "^3.0.0"
           }
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@@ -2703,16 +2703,16 @@
           "integrity": "sha1-cstmi0JSKCkKu/qFaJJYcwioAfs=",
           "dev": true,
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-            "decamelize": "1.2.0",
-            "loud-rejection": "1.6.0",
-            "map-obj": "1.0.1",
-            "minimist": "1.2.0",
-            "normalize-package-data": "2.4.0",
-            "object-assign": "4.1.1",
-            "read-pkg-up": "1.0.1",
-            "redent": "1.0.0",
-            "trim-newlines": "1.0.0"
+            "camelcase-keys": "^2.0.0",
+            "decamelize": "^1.1.2",
+            "loud-rejection": "^1.0.0",
+            "map-obj": "^1.0.1",
+            "minimist": "^1.1.3",
+            "normalize-package-data": "^2.3.4",
+            "object-assign": "^4.0.1",
+            "read-pkg-up": "^1.0.1",
+            "redent": "^1.0.0",
+            "trim-newlines": "^1.0.0"
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@@ -2727,10 +2727,10 @@
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           "dev": true,
           "requires": {
-            "hosted-git-info": "2.5.0",
-            "is-builtin-module": "1.0.0",
-            "semver": "5.4.1",
-            "validate-npm-package-license": "3.0.1"
+            "hosted-git-info": "^2.1.4",
+            "is-builtin-module": "^1.0.0",
+            "semver": "2 || 3 || 4 || 5",
+            "validate-npm-package-license": "^3.0.1"
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         "number-is-nan": {
@@ -2751,7 +2751,7 @@
           "integrity": "sha1-9ID0BDTvgHQfhGkJn43qGPVaTck=",
           "dev": true,
           "requires": {
-            "error-ex": "1.3.1"
+            "error-ex": "^1.2.0"
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@@ -2766,7 +2766,7 @@
           "integrity": "sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=",
           "dev": true,
           "requires": {
-            "pinkie-promise": "2.0.1"
+            "pinkie-promise": "^2.0.0"
           }
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         "path-type": {
@@ -2775,9 +2775,9 @@
           "integrity": "sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=",
           "dev": true,
           "requires": {
-            "graceful-fs": "4.1.11",
-            "pify": "2.3.0",
-            "pinkie-promise": "2.0.1"
+            "graceful-fs": "^4.1.2",
+            "pify": "^2.0.0",
+            "pinkie-promise": "^2.0.0"
           }
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         "pify": {
@@ -2798,7 +2798,7 @@
           "integrity": "sha1-ITXW36ejWMBprJsXh3YogihFD/o=",
           "dev": true,
           "requires": {
-            "pinkie": "2.0.4"
+            "pinkie": "^2.0.0"
           }
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         "plur": {
@@ -2813,11 +2813,11 @@
           "integrity": "sha1-aQ1VY3lXwMU/gIaoEK23R4Jamg8=",
           "dev": true,
           "requires": {
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-            "is-finite": "1.0.2",
-            "meow": "3.7.0",
-            "parse-ms": "1.0.1",
-            "plur": "1.0.0"
+            "get-stdin": "^4.0.1",
+            "is-finite": "^1.0.1",
+            "meow": "^3.3.0",
+            "parse-ms": "^1.0.0",
+            "plur": "^1.0.0"
           }
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         "read-pkg": {
@@ -2826,9 +2826,9 @@
           "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
           "dev": true,
           "requires": {
-            "load-json-file": "1.1.0",
-            "normalize-package-data": "2.4.0",
-            "path-type": "1.1.0"
+            "load-json-file": "^1.0.0",
+            "normalize-package-data": "^2.3.2",
+            "path-type": "^1.0.0"
           }
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         "read-pkg-up": {
@@ -2837,8 +2837,8 @@
           "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
           "dev": true,
           "requires": {
-            "find-up": "1.1.2",
-            "read-pkg": "1.1.0"
+            "find-up": "^1.0.0",
+            "read-pkg": "^1.0.0"
           }
         },
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@@ -2847,10 +2847,10 @@
           "integrity": "sha1-fPTFTvZI44EwhMY23SB54WbAgdk=",
           "dev": true,
           "requires": {
-            "core-util-is": "1.0.2",
-            "inherits": "2.0.3",
+            "core-util-is": "~1.0.0",
+            "inherits": "~2.0.1",
             "isarray": "0.0.1",
-            "string_decoder": "0.10.31"
+            "string_decoder": "~0.10.x"
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         "redent": {
@@ -2859,8 +2859,8 @@
           "integrity": "sha1-z5Fqsf1fHxbfsggi3W7H9zDCr94=",
           "dev": true,
           "requires": {
-            "indent-string": "2.1.0",
-            "strip-indent": "1.0.1"
+            "indent-string": "^2.1.0",
+            "strip-indent": "^1.0.1"
           }
         },
         "repeating": {
@@ -2869,7 +2869,7 @@
           "integrity": "sha1-UhTFOpJtNVJwdSf7q0FdvAjQbdo=",
           "dev": true,
           "requires": {
-            "is-finite": "1.0.2"
+            "is-finite": "^1.0.0"
           }
         },
         "semver": {
@@ -2890,7 +2890,7 @@
           "integrity": "sha1-SzBz2TP/UfORLwOsVRlJikFQ20A=",
           "dev": true,
           "requires": {
-            "spdx-license-ids": "1.2.2"
+            "spdx-license-ids": "^1.0.2"
           }
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         "spdx-expression-parse": {
@@ -2917,7 +2917,7 @@
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
-            "ansi-regex": "2.1.1"
+            "ansi-regex": "^2.0.0"
           }
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         "strip-bom": {
@@ -2926,7 +2926,7 @@
           "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
           "dev": true,
           "requires": {
-            "is-utf8": "0.2.1"
+            "is-utf8": "^0.2.0"
           }
         },
         "strip-indent": {
@@ -2935,7 +2935,7 @@
           "integrity": "sha1-DHlipq3vp7vUrDZkYKY4VSrhoKI=",
           "dev": true,
           "requires": {
-            "get-stdin": "4.0.1"
+            "get-stdin": "^4.0.1"
           }
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@@ -2950,9 +2950,9 @@
           "integrity": "sha1-coph1kaApbSNXb2dvQpNSPXDW8s=",
           "dev": true,
           "requires": {
-            "inherits": "2.0.3",
-            "minimist": "0.2.0",
-            "readable-stream": "1.1.14"
+            "inherits": "~2.0.1",
+            "minimist": "^0.2.0",
+            "readable-stream": "~1.1.11"
           },
           "dependencies": {
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@@ -2969,8 +2969,8 @@
           "integrity": "sha1-QaucZ7KdVyCQcUEOHXp6lozTrUg=",
           "dev": true,
           "requires": {
-            "readable-stream": "1.0.34",
-            "xtend": "4.0.1"
+            "readable-stream": ">=1.0.33-1 <1.1.0-0",
+            "xtend": ">=4.0.0 <4.1.0-0"
           },
           "dependencies": {
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@@ -2979,10 +2979,10 @@
               "integrity": "sha1-Elgg40vIQtLyqq+v5MKRbuMsFXw=",
               "dev": true,
               "requires": {
-                "core-util-is": "1.0.2",
-                "inherits": "2.0.3",
+                "core-util-is": "~1.0.0",
+                "inherits": "~2.0.1",
                 "isarray": "0.0.1",
-                "string_decoder": "0.10.31"
+                "string_decoder": "~0.10.x"
               }
             }
           }
@@ -2999,8 +2999,8 @@
           "integrity": "sha1-KAS6vnEq0zeUWaz74kdGqywwP7w=",
           "dev": true,
           "requires": {
-            "spdx-correct": "1.0.2",
-            "spdx-expression-parse": "1.0.4"
+            "spdx-correct": "~1.0.0",
+            "spdx-expression-parse": "~1.0.0"
           }
         },
         "xtend": {
@@ -3017,13 +3017,13 @@
       "integrity": "sha1-SJPdU+KApfWMDOswwsDrs7zVHh8=",
       "dev": true,
       "requires": {
-        "deep-equal": "0.2.2",
-        "defined": "0.0.0",
-        "glob": "3.2.11",
-        "inherits": "2.0.3",
-        "object-inspect": "0.4.0",
-        "resumer": "0.0.0",
-        "through": "2.3.8"
+        "deep-equal": "~0.2.0",
+        "defined": "~0.0.0",
+        "glob": "~3.2.9",
+        "inherits": "~2.0.1",
+        "object-inspect": "~0.4.0",
+        "resumer": "~0.0.0",
+        "through": "~2.3.4"
       },
       "dependencies": {
         "deep-equal": {
@@ -3044,8 +3044,8 @@
           "integrity": "sha1-Spc/Y1uRkPcV0QmH1cAP0oFevj0=",
           "dev": true,
           "requires": {
-            "inherits": "2.0.3",
-            "minimatch": "0.3.0"
+            "inherits": "2",
+            "minimatch": "0.3"
           }
         },
         "inherits": {
@@ -3066,8 +3066,8 @@
           "integrity": "sha1-J12O2qxPG7MyZHIInnlJyDlGmd0=",
           "dev": true,
           "requires": {
-            "lru-cache": "2.7.3",
-            "sigmund": "1.0.1"
+            "lru-cache": "2",
+            "sigmund": "~1.0.0"
           }
         },
         "object-inspect": {
@@ -3082,7 +3082,7 @@
           "integrity": "sha1-8ej0YeQGS6Oegq883CqMiT0HZ1k=",
           "dev": true,
           "requires": {
-            "through": "2.3.8"
+            "through": "~2.3.4"
           }
         },
         "sigmund": {
@@ -3105,7 +3105,7 @@
       "integrity": "sha1-C2GKVWW23qkL80JdBNVe3EdadWE=",
       "dev": true,
       "requires": {
-        "punycode": "1.4.1"
+        "punycode": "^1.4.1"
       },
       "dependencies": {
         "punycode": {
diff --git a/package.json b/package.json
index bd82565..0e7bed1 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "tablesort",
   "description": "A sorting component for HTML tables",
-  "version": "5.0.2",
+  "version": "5.1.0",
   "author": "tristen",
   "license": "MIT",
   "main": "./src/tablesort.js",