diff --git a/package-lock.json b/package-lock.json
index 31661d0..126ca44 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -751,6 +751,17 @@
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       "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw="
     },
+    "caw": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/caw/-/caw-2.0.1.tgz",
+      "integrity": "sha512-Cg8/ZSBEa8ZVY9HspcGUYaK63d/bN7rqS3CYCzEGUxuYv6UlmcjzDUz2fCFFHyTvUW5Pk0I+3hkA3iXlIj6guA==",
+      "requires": {
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+        "isurl": "^1.0.0-alpha5",
+        "tunnel-agent": "^0.6.0",
+        "url-to-options": "^1.0.1"
+      }
+    },
     "center-align": {
       "version": "0.1.3",
       "resolved": "http://registry.npm.taobao.org/center-align/download/center-align-0.1.3.tgz",
@@ -791,6 +802,11 @@
         "readdirp": "2.1.0"
       }
     },
+    "chownr": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz",
+      "integrity": "sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg=="
+    },
     "cliui": {
       "version": "2.1.0",
       "resolved": "http://registry.npm.taobao.org/cliui/download/cliui-2.1.0.tgz",
@@ -806,6 +822,37 @@
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       "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ="
     },
+    "color": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/color/-/color-2.0.1.tgz",
+      "integrity": "sha512-ubUCVVKfT7r2w2D3qtHakj8mbmKms+tThR8gI8zEYCbUBl8/voqFGt3kgBqGwXAopgXybnkuOq+qMYCRrp4cXw==",
+      "requires": {
+        "color-convert": "^1.9.1",
+        "color-string": "^1.5.2"
+      }
+    },
+    "color-convert": {
+      "version": "1.9.3",
+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
+      "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
+      "requires": {
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+      }
+    },
+    "color-name": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
+      "integrity": "sha512-72fSenhMw2HZMTVHeCA9KCmpEIbzWiQsjN+BHcBbS9vr1mtt+vJjPdksIBNUmKAW8TFUDPJK5SUU3QhE9NEXDw=="
+    },
+    "color-string": {
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/color-string/-/color-string-1.9.1.tgz",
+      "integrity": "sha512-shrVawQFojnZv6xM40anx4CkoDP+fZsw/ZerEMsW/pyzsRbElpsL/DBVW7q3ExxwusdNXI3lXpuhEZkzs8p5Eg==",
+      "requires": {
+        "color-name": "^1.0.0",
+        "simple-swizzle": "^0.2.2"
+      }
+    },
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       "version": "1.0.5",
       "resolved": "http://registry.npm.taobao.org/combined-stream/download/combined-stream-1.0.5.tgz",
@@ -836,6 +883,15 @@
         "typedarray": "0.0.6"
       }
     },
+    "config-chain": {
+      "version": "1.1.13",
+      "resolved": "https://registry.npmjs.org/config-chain/-/config-chain-1.1.13.tgz",
+      "integrity": "sha512-qj+f8APARXHrM0hraqXYb2/bOVSV4PvJQlNZ/DVj0QrmNM2q2euizkeuVckQ57J+W0mRH6Hvi+k50M4Jul2VRQ==",
+      "requires": {
+        "ini": "^1.3.4",
+        "proto-list": "~1.2.1"
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       "resolved": "https://registry.npmjs.org/contentstream/-/contentstream-1.0.0.tgz",
@@ -945,8 +1001,8 @@
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-      "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
-      "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
+      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
       "dev": true,
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@@ -957,6 +1013,14 @@
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       "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA="
     },
+    "decompress-response": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-3.3.0.tgz",
+      "integrity": "sha512-BzRPQuY1ip+qDonAOz42gRm/pg9F768C+npV/4JOsxRC2sq+Rlk+Q4ZCAsOhnIaMrgarILY+RMUIvMmmX1qAEA==",
+      "requires": {
+        "mimic-response": "^1.0.0"
+      }
+    },
     "delayed-stream": {
       "version": "1.0.0",
       "resolved": "http://registry.npm.taobao.org/delayed-stream/download/delayed-stream-1.0.0.tgz",
@@ -971,6 +1035,11 @@
         "repeating": "2.0.1"
       }
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+    "detect-libc": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-0.2.0.tgz",
+      "integrity": "sha512-M2DlBIG+ImANd4hvyne5ijJ4AWf3HAKi7E8poBClIg9m++kiFscZ+lY6fyU75CkV+RwU9qASjILmKWFm1dD/EQ=="
+    },
     "dup": {
       "version": "1.0.0",
       "resolved": "http://registry.npm.taobao.org/dup/download/dup-1.0.0.tgz",
@@ -1426,7 +1495,8 @@
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         "debug": {
           "version": "2.6.8",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
+          "integrity": "sha512-E22fsyWPt/lr4/UgQLt/pXqerGMDsanhbnmqIS3VAXuDi1v3IpiwXe2oncEIondHSBuPDWRoK/pMjlvi8FuOXQ==",
           "dev": true,
           "optional": true,
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@@ -2195,6 +2265,14 @@
         "through": "2.3.8"
       }
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+    "get-proxy": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/get-proxy/-/get-proxy-2.1.0.tgz",
+      "integrity": "sha512-zmZIaQTWnNQb4R4fJUEp/FC51eZsc6EkErspy3xtIYStaq8EB/hDIWipxsal+E8rz0qD7f2sL/NA9Xee4RInJw==",
+      "requires": {
+        "npm-conf": "^1.1.0"
+      }
+    },
     "getpass": {
       "version": "0.1.7",
       "resolved": "http://registry.npm.taobao.org/getpass/download/getpass-0.1.7.tgz",
@@ -2312,6 +2390,19 @@
         "ansi-regex": "2.1.1"
       }
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+    "has-symbol-support-x": {
+      "version": "1.4.2",
+      "resolved": "https://registry.npmjs.org/has-symbol-support-x/-/has-symbol-support-x-1.4.2.tgz",
+      "integrity": "sha512-3ToOva++HaW+eCpgqZrCfN51IPB+7bJNVT6CUATzueB5Heb8o6Nam0V3HG5dlDvZU1Gn5QLcbahiKw/XVk5JJw=="
+    },
+    "has-to-string-tag-x": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/has-to-string-tag-x/-/has-to-string-tag-x-1.4.1.tgz",
+      "integrity": "sha512-vdbKfmw+3LoOYVr+mtxHaX5a96+0f3DljYd8JOqvOLsf5mw2Otda2qCDT9qRqLAhrjyQ0h7ual5nOiASpsGNFw==",
+      "requires": {
+        "has-symbol-support-x": "^1.4.1"
+      }
+    },
     "hawk": {
       "version": "6.0.2",
       "resolved": "http://registry.npm.taobao.org/hawk/download/hawk-6.0.2.tgz",
@@ -2363,6 +2454,11 @@
       "resolved": "http://registry.npm.taobao.org/inherits/download/inherits-2.0.3.tgz",
       "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4="
     },
+    "ini": {
+      "version": "1.3.8",
+      "resolved": "https://registry.npmjs.org/ini/-/ini-1.3.8.tgz",
+      "integrity": "sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew=="
+    },
     "invariant": {
       "version": "2.2.2",
       "resolved": "http://registry.npm.taobao.org/invariant/download/invariant-2.2.2.tgz",
@@ -2377,6 +2473,11 @@
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       "integrity": "sha1-ge9X/l0FgUzVjCSDYyqZwwoOgIc="
     },
+    "is-arrayish": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.3.2.tgz",
+      "integrity": "sha512-eVRqCvVlZbuw3GrM63ovNSNAeA1K16kaR/LRY/92w0zxQ5/1YzwblUX652i4Xs9RwAGjW9d9y6X88t8OaAJfWQ=="
+    },
     "is-binary-path": {
       "version": "1.0.1",
       "resolved": "http://registry.npm.taobao.org/is-binary-path/download/is-binary-path-1.0.1.tgz",
@@ -2452,6 +2553,11 @@
         "kind-of": "3.2.2"
       }
     },
+    "is-object": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/is-object/-/is-object-1.0.2.tgz",
+      "integrity": "sha512-2rRIahhZr2UWb45fIOuvZGpFtz0TyOZLf32KxBbSoUCeZR495zCKlWUKKUByk3geS2eAs7ZAABt0Y/Rx0GiQGA=="
+    },
     "is-posix-bracket": {
       "version": "0.1.1",
       "resolved": "http://registry.npm.taobao.org/is-posix-bracket/download/is-posix-bracket-0.1.1.tgz",
@@ -2491,6 +2597,15 @@
       "resolved": "http://registry.npm.taobao.org/isstream/download/isstream-0.1.2.tgz",
       "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo="
     },
+    "isurl": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/isurl/-/isurl-1.0.0.tgz",
+      "integrity": "sha512-1P/yWsxPlDtn7QeRD+ULKQPaIaN6yF368GZ2vDfv0AL0NwpStafjWCDDdn0k8wgFMWpVAqG7oJhxHnlud42i9w==",
+      "requires": {
+        "has-to-string-tag-x": "^1.2.0",
+        "is-object": "^1.0.1"
+      }
+    },
     "jpeg-js": {
       "version": "0.1.2",
       "resolved": "http://registry.npm.taobao.org/jpeg-js/download/jpeg-js-0.1.2.tgz",
@@ -2614,6 +2729,11 @@
         "mime-db": "1.30.0"
       }
     },
+    "mimic-response": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-1.0.1.tgz",
+      "integrity": "sha512-j5EctnkH7amfV/q5Hgmoal1g2QHFJRraOtmx0JpIqkxhBhI/lJSl1nMpQ45hVarwNETOoWEimndZ4QK0RHxuxQ=="
+    },
     "minimatch": {
       "version": "3.0.4",
       "resolved": "http://registry.npm.taobao.org/minimatch/download/minimatch-3.0.4.tgz",
@@ -2628,11 +2748,34 @@
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       "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
     },
+    "minipass": {
+      "version": "2.9.0",
+      "resolved": "https://registry.npmjs.org/minipass/-/minipass-2.9.0.tgz",
+      "integrity": "sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==",
+      "requires": {
+        "safe-buffer": "^5.1.2",
+        "yallist": "^3.0.0"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+        }
+      }
+    },
+    "minizlib": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/minizlib/-/minizlib-1.3.3.tgz",
+      "integrity": "sha512-6ZYMOEnmVsdCeTJVE0W9ZD+pVnE8h9Hma/iOwwRDsdQoePpoX56/8B6z3P9VNwppJuBKNRuFDRNRqRWexT9G9Q==",
+      "requires": {
+        "minipass": "^2.9.0"
+      }
+    },
     "mkdirp": {
       "version": "0.5.1",
       "resolved": "http://registry.npm.taobao.org/mkdirp/download/mkdirp-0.5.1.tgz",
       "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
-      "dev": true,
       "requires": {
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@@ -2646,9 +2789,7 @@
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       "resolved": "http://registry.npm.taobao.org/nan/download/nan-2.8.0.tgz",
-      "integrity": "sha1-7XFfP+neArV6XmJS2QqWZ14fCFo=",
-      "dev": true,
-      "optional": true
+      "integrity": "sha1-7XFfP+neArV6XmJS2QqWZ14fCFo="
     },
     "ndarray": {
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@@ -2722,6 +2863,15 @@
         "remove-trailing-separator": "1.1.0"
       }
     },
+    "npm-conf": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/npm-conf/-/npm-conf-1.1.3.tgz",
+      "integrity": "sha512-Yic4bZHJOt9RCFbRP3GgpqhScOY4HH3V2P8yBj6CeYq118Qr+BLXqT2JvpJ00mryLESpgOxf5XlFv4ZjXxLScw==",
+      "requires": {
+        "config-chain": "^1.1.11",
+        "pify": "^3.0.0"
+      }
+    },
     "number-is-nan": {
       "version": "1.0.1",
       "resolved": "http://registry.npm.taobao.org/number-is-nan/download/number-is-nan-1.0.1.tgz",
@@ -2769,7 +2919,6 @@
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       "resolved": "http://registry.npm.taobao.org/once/download/once-1.4.0.tgz",
       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
-      "dev": true,
       "requires": {
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@@ -2829,6 +2978,11 @@
       "resolved": "http://registry.npm.taobao.org/performance-now/download/performance-now-2.1.0.tgz",
       "integrity": "sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns="
     },
+    "pify": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+      "integrity": "sha512-C3FsVNH1udSEX48gGX1xfvwTWfsYWj5U+8/uK15BGzIGrKoUpghX8hWZwa/OFnakBiiVNmBvemTJR5mcy7iPcg=="
+    },
     "pngjs": {
       "version": "2.3.1",
       "resolved": "http://registry.npm.taobao.org/pngjs/download/pngjs-2.3.1.tgz",
@@ -2857,6 +3011,11 @@
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       "integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M="
     },
+    "proto-list": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/proto-list/-/proto-list-1.2.4.tgz",
+      "integrity": "sha512-vtK/94akxsTMhe0/cbfpR+syPuszcuwhqVjJq26CuNDgFGj682oRBXOP5MJpv2r7JtE8MsiepGIqvvOTBwn2vA=="
+    },
     "punycode": {
       "version": "1.4.1",
       "resolved": "http://registry.npm.taobao.org/punycode/download/punycode-1.4.1.tgz",
@@ -3106,6 +3265,11 @@
         }
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+    "semver": {
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+      "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
+    },
     "set-immediate-shim": {
       "version": "1.0.1",
       "resolved": "http://registry.npm.taobao.org/set-immediate-shim/download/set-immediate-shim-1.0.1.tgz",
@@ -3118,6 +3282,43 @@
       "resolved": "http://registry.npm.taobao.org/shallow-copy/download/shallow-copy-0.0.1.tgz",
       "integrity": "sha1-QV9CcC1z2BAzApLMXuhurhoRoXA="
     },
+    "sharp": {
+      "version": "0.18.4",
+      "resolved": "https://registry.npmjs.org/sharp/-/sharp-0.18.4.tgz",
+      "integrity": "sha512-91mwjTB/tid4Xft7Bof74xT+a0Old9FM+73CxftnjN3F9du5a1FtWzuIM+bqdr1hzhQexxSSN7hzNNj5NLwkNg==",
+      "requires": {
+        "caw": "^2.0.0",
+        "color": "^2.0.0",
+        "detect-libc": "^0.2.0",
+        "nan": "^2.6.2",
+        "semver": "^5.3.0",
+        "simple-get": "^2.7.0",
+        "tar": "^3.1.5"
+      }
+    },
+    "simple-concat": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/simple-concat/-/simple-concat-1.0.1.tgz",
+      "integrity": "sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q=="
+    },
+    "simple-get": {
+      "version": "2.8.2",
+      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-2.8.2.tgz",
+      "integrity": "sha512-Ijd/rV5o+mSBBs4F/x9oDPtTx9Zb6X9brmnXvMW4J7IR15ngi9q5xxqWBKU744jTZiaXtxaPL7uHG6vtN8kUkw==",
+      "requires": {
+        "decompress-response": "^3.3.0",
+        "once": "^1.3.1",
+        "simple-concat": "^1.0.0"
+      }
+    },
+    "simple-swizzle": {
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/simple-swizzle/-/simple-swizzle-0.2.2.tgz",
+      "integrity": "sha512-JA//kQgZtbuY83m+xT+tXJkmJncGMTFT+C+g2h2R9uxkYIrE2yy9sgmcLhCnw57/WSD+Eh3J97FPEDFnbXnDUg==",
+      "requires": {
+        "is-arrayish": "^0.3.1"
+      }
+    },
     "slash": {
       "version": "1.0.0",
       "resolved": "http://registry.npm.taobao.org/slash/download/slash-1.0.0.tgz",
@@ -3260,6 +3461,18 @@
       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
       "dev": true
     },
+    "tar": {
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/tar/-/tar-3.2.3.tgz",
+      "integrity": "sha512-dceKyLOOHJCE5NQx9zAS7UjVSVQ0BPrbDc2KN0LI42fBWC8OV9+DP/dS3CMn4SnnNpYKdmEP6crYgdbVf1ZCCg==",
+      "requires": {
+        "chownr": "^1.0.1",
+        "minipass": "^2.0.2",
+        "minizlib": "^1.0.3",
+        "mkdirp": "^0.5.0",
+        "yallist": "^3.0.2"
+      }
+    },
     "through": {
       "version": "2.3.8",
       "resolved": "http://registry.npm.taobao.org/through/download/through-2.3.8.tgz",
@@ -3357,6 +3570,11 @@
       "resolved": "http://registry.npm.taobao.org/uniq/download/uniq-1.0.1.tgz",
       "integrity": "sha1-sxxa6CVIRKOoKBVBzisEuGWnNP8="
     },
+    "url-to-options": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/url-to-options/-/url-to-options-1.0.1.tgz",
+      "integrity": "sha512-0kQLIzG4fdk/G5NONku64rSH/x32NOA39LVQqlK8Le6lvTF6GGRJpqaQFGgU+CLwySIqBSMdwYM0sYcW9f6P4A=="
+    },
     "user-home": {
       "version": "1.1.1",
       "resolved": "http://registry.npm.taobao.org/user-home/download/user-home-1.1.1.tgz",
@@ -3410,8 +3628,7 @@
     "wrappy": {
       "version": "1.0.2",
       "resolved": "http://registry.npm.taobao.org/wrappy/download/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-      "dev": true
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "xtend": {
       "version": "2.1.2",
@@ -3428,6 +3645,11 @@
         }
       }
     },
+    "yallist": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
+      "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g=="
+    },
     "yargs": {
       "version": "3.10.0",
       "resolved": "http://registry.npm.taobao.org/yargs/download/yargs-3.10.0.tgz",