option support for webpack 2

Author: yyx990803

lib/loader.js

@@ -28,7 +28,7 @@ module.exports = function (content) {
 
   this.cacheable()
   var loaderContext = this
-  var options = this.options.vue || {}
+  var options = this.vue || this.options.vue || {}
   var query = loaderUtils.parseQuery(this.query)
   var filePath = this.resourcePath
   var fileName = path.basename(filePath)