upgrade to latest webpack version

package.json

@@ -57,7 +57,7 @@
     "vue-loader": "^11.3.4",
     "vue-resource": "^0.9.3",
     "vue-template-compiler": "^2.2.6",
-    "webpack": "^2.3.3",
+    "webpack": "^2.6.0",
     "webpack-bundle-analyzer": "^2.3.0"
   },
   "devDependencies": {

yarn.lock

@@ -33,10 +33,14 @@ acorn@^3.0.4:
   version "3.3.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
-acorn@^4.0.11, acorn@^4.0.3, acorn@^4.0.4:
+acorn@^4.0.11, acorn@^4.0.3:
   version "4.0.11"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-4.0.11.tgz#edcda3bd937e7556410d42ed5860f67399c794c0"
+acorn@^5.0.0:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.0.3.tgz#c460df08491463f028ccb82eab3730bf01087b3d"
+
 after@0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
@@ -3198,7 +3202,7 @@ json3@3.3.2, json3@^3.3.2:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.2.tgz#3c0434743df93e2f5c42aee7b19bcb483575f4e1"
-json5@^0.5.0:
+json5@^0.5.0, json5@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
@@ -5507,9 +5511,9 @@ typedarray@^0.0.6, typedarray@~0.0.5:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
-uglify-js@^2.6, uglify-js@^2.8.5:
-  version "2.8.21"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.21.tgz#1733f669ae6f82fc90c7b25ec0f5c783ee375314"
+uglify-js@^2.6, uglify-js@^2.8.27:
+  version "2.8.27"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.27.tgz#47787f912b0f242e5b984343be8e35e95f694c9c"
   dependencies:
     source-map "~0.5.1"
     yargs "~3.10.0"
@@ -5789,11 +5793,11 @@ webpack-sources@^0.2.3:
     source-list-map "^1.1.1"
     source-map "~0.5.3"
-webpack@^2.3.3:
-  version "2.3.3"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-2.3.3.tgz#eecc083c18fb7bf958ea4f40b57a6640c5a0cc78"
+webpack@^2.6.0:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-2.6.0.tgz#7e650a92816abff5db5f43316b0b8b19b13d76c1"
   dependencies:
-    acorn "^4.0.4"
+    acorn "^5.0.0"
     acorn-dynamic-import "^2.0.0"
     ajv "^4.7.0"
     ajv-keywords "^1.1.1"
@@ -5801,6 +5805,7 @@ webpack@^2.3.3:
     enhanced-resolve "^3.0.0"
     interpret "^1.0.0"
     json-loader "^0.5.4"
+    json5 "^0.5.1"
     loader-runner "^2.3.0"
     loader-utils "^0.2.16"
     memory-fs "~0.4.1"
@@ -5809,7 +5814,7 @@ webpack@^2.3.3:
     source-map "^0.5.3"
     supports-color "^3.1.0"
     tapable "~0.2.5"
-    uglify-js "^2.8.5"
+    uglify-js "^2.8.27"
     watchpack "^1.3.1"
     webpack-sources "^0.2.3"
     yargs "^6.0.0"