update dependencies

package.json

@@ -112,11 +112,12 @@
     "transliteration": "^1.1.11",
     "uppercamelcase": "^1.1.0",
     "url-loader": "^0.5.7",
-    "vue": "2.1.6",
+    "vue": "^2.1.8",
     "vue-loader": "^10.0.2",
     "vue-markdown-loader": "^0.5.1",
     "vue-router": "^2.0.0",
-    "vue-template-compiler": "2.1.6",
+    "vue-template-compiler": "^2.1.8",
+    "vue-template-es2015-compiler": "^1.4.2",
     "webpack": "^1.13.2",
     "webpack-dev-server": "^1.15.1",
     "webpack-node-externals": "^1.5.4"