打包文件，修改引入方式

package.json

@@ -1,8 +1,8 @@
 {
   "name": "vue2-datepicker",
   "description": "A Datepicker Component For Vue2",
-  "main": "datepicker/index.vue",
-  "version": "1.6.3",
+  "main": "dist/build.js",
+  "version": "1.7.0",
   "scripts": {
     "dev": "cross-env NODE_ENV=development webpack-dev-server --open --hot",
     "build": "cross-env NODE_ENV=production webpack --progress --hide-modules"
@@ -25,13 +25,28 @@
     "vue": "^2.2.1"
   },
   "devDependencies": {
+    "autoprefixer": "^7.1.6",
     "babel-core": "^6.0.0",
-    "babel-loader": "^6.0.0",
-    "babel-preset-latest": "^6.0.0",
-    "cross-env": "^3.0.0",
+    "babel-eslint": "^8.0.2",
+    "babel-loader": "^7.0.0",
+    "babel-preset-env": "^1.6.0",
+    "babel-preset-stage-3": "^6.24.1",
+    "cross-env": "^5.0.0",
     "css-loader": "^0.25.0",
+    "eslint": "^4.12.0",
+    "eslint-config-standard": "^10.2.1",
+    "eslint-friendly-formatter": "^3.0.0",
+    "eslint-loader": "^1.9.0",
+    "eslint-plugin-html": "^4.0.1",
+    "eslint-plugin-import": "^2.8.0",
+    "eslint-plugin-node": "^5.2.1",
+    "eslint-plugin-promise": "^3.6.0",
+    "eslint-plugin-standard": "^3.0.1",
     "file-loader": "^0.9.0",
-    "vue-loader": "^11.1.4",
+    "node-sass": "^4.7.2",
+    "postcss-loader": "^2.0.9",
+    "sass-loader": "^6.0.6",
+    "vue-loader": "^13.0.5",
     "vue-template-compiler": "^2.2.1",
     "webpack": "^2.2.0",
     "webpack-dev-server": "^2.2.0"