diff --git a/package-lock.json b/package-lock.json
deleted file mode 100644
index 620a330..0000000
--- a/package-lock.json
+++ /dev/null
@@ -1,185 +0,0 @@
-{
-  "name": "invert-color",
-  "version": "1.0.0",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "ansi-styles": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
-      "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
-      "dev": true,
-      "requires": {
-        "color-convert": "1.9.0"
-      }
-    },
-    "balanced-match": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-      "dev": true
-    },
-    "brace-expansion": {
-      "version": "1.1.8",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.8.tgz",
-      "integrity": "sha1-wHshHHyVLsH479Uad+8NHTmQopI=",
-      "dev": true,
-      "requires": {
-        "balanced-match": "1.0.0",
-        "concat-map": "0.0.1"
-      }
-    },
-    "chalk": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.1.0.tgz",
-      "integrity": "sha512-LUHGS/dge4ujbXMJrnihYMcL4AoOweGnw9Tp3kQuqy1Kx5c1qKjqvMJZ6nVJPMWJtKCTN72ZogH3oeSO9g9rXQ==",
-      "dev": true,
-      "requires": {
-        "ansi-styles": "3.2.0",
-        "escape-string-regexp": "1.0.5",
-        "supports-color": "4.2.1"
-      }
-    },
-    "color-convert": {
-      "version": "1.9.0",
-      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.0.tgz",
-      "integrity": "sha1-Gsz5fdc5uYO/mU1W/sj5WFNkG3o=",
-      "dev": true,
-      "requires": {
-        "color-name": "1.1.3"
-      }
-    },
-    "color-name": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
-      "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
-      "dev": true
-    },
-    "concat-map": {
-      "version": "0.0.1",
-      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-      "dev": true
-    },
-    "escape-string-regexp": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
-      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
-      "dev": true
-    },
-    "exit": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/exit/-/exit-0.1.2.tgz",
-      "integrity": "sha1-BjJjj42HfMghB9MKD/8aF8uhzQw=",
-      "dev": true
-    },
-    "fs.realpath": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
-      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
-      "dev": true
-    },
-    "glob": {
-      "version": "7.1.2",
-      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
-      "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
-      "dev": true,
-      "requires": {
-        "fs.realpath": "1.0.0",
-        "inflight": "1.0.6",
-        "inherits": "2.0.3",
-        "minimatch": "3.0.4",
-        "once": "1.4.0",
-        "path-is-absolute": "1.0.1"
-      }
-    },
-    "has-flag": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-2.0.0.tgz",
-      "integrity": "sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=",
-      "dev": true
-    },
-    "inflight": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
-      "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
-      "dev": true,
-      "requires": {
-        "once": "1.4.0",
-        "wrappy": "1.0.2"
-      }
-    },
-    "inherits": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
-      "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
-      "dev": true
-    },
-    "jasmine": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/jasmine/-/jasmine-2.7.0.tgz",
-      "integrity": "sha1-XPC7TllLRgC7QjVWA2YhKsWuobI=",
-      "dev": true,
-      "requires": {
-        "exit": "0.1.2",
-        "glob": "7.1.2",
-        "jasmine-core": "2.7.0"
-      }
-    },
-    "jasmine-console-reporter": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/jasmine-console-reporter/-/jasmine-console-reporter-2.0.1.tgz",
-      "integrity": "sha512-Q9pQ18NI+Oz9+kRmvcmM8oDTgiIoAESMRpO/DsyCOwIqktc7onsev6vKLmf3h+UP3AuX7xBB6xlREoV4jMOlzw==",
-      "dev": true,
-      "requires": {
-        "ansi-styles": "3.2.0",
-        "chalk": "2.1.0"
-      }
-    },
-    "jasmine-core": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/jasmine-core/-/jasmine-core-2.7.0.tgz",
-      "integrity": "sha1-UP+MT5LY71wLLBuEbdJj7YUVIJE=",
-      "dev": true
-    },
-    "minimatch": {
-      "version": "3.0.4",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-      "dev": true,
-      "requires": {
-        "brace-expansion": "1.1.8"
-      }
-    },
-    "once": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
-      "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
-      "dev": true,
-      "requires": {
-        "wrappy": "1.0.2"
-      }
-    },
-    "path-is-absolute": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
-      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
-      "dev": true
-    },
-    "supports-color": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.2.1.tgz",
-      "integrity": "sha512-qxzYsob3yv6U+xMzPrv170y8AwGP7i74g+pbixCfD6rgso8BscLT2qXIuz6TpOaiJZ3mFgT5O9lyT9nMU4LfaA==",
-      "dev": true,
-      "requires": {
-        "has-flag": "2.0.0"
-      }
-    },
-    "wrappy": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true
-    }
-  }
-}