Update dependencies

package.json

@@ -30,16 +30,16 @@
     "node": ">= 4.5"
   },
   "devDependencies": {
-    "autoprefixer": "^6.5.2",
+    "autoprefixer": "^6.6.1",
     "body-parser": "^1.15.2",
-    "browser-sync": "^2.17.5",
-    "browsersync-webpack-plugin": "^0.1.1",
-    "buble": "^0.14.2",
-    "buble-loader": "^0.3.2",
-    "clean-webpack-plugin": "^0.1.13",
-    "css-loader": "^0.25.0",
-    "cssnano": "^3.8.0",
-    "eslint": "^3.9.1",
+    "browser-sync": "^2.18.6",
+    "browsersync-webpack-plugin": "^0.2.0",
+    "buble": "^0.15.2",
+    "buble-loader": "^0.4.0",
+    "clean-webpack-plugin": "^0.1.15",
+    "css-loader": "^0.26.1",
+    "cssnano": "^3.10.0",
+    "eslint": "^3.13.0",
     "eslint-config-airbnb": "^12.0.0",
     "eslint-loader": "^1.6.1",
     "eslint-plugin-import": "^2.0.1",
@@ -49,26 +49,26 @@
     "file-loader": "^0.9.0",
     "glob": "^7.1.1",
     "imagemin-mozjpeg": "^6.0.0",
-    "imagemin-webpack-plugin": "^1.2.1",
-    "imports-loader": "^0.6.5",
+    "imagemin-webpack-plugin": "^1.4.4",
+    "imports-loader": "^0.7.0",
     "loader-utils": "^0.2.16",
-    "lodash": "^4.16.6",
+    "lodash": "^4.17.4",
     "minimist": "^1.2.0",
     "monkey-hot-loader": "github:rmarscher/monkey-hot-loader#webpack2-import",
-    "node-sass": "^3.11.2",
+    "node-sass": "^4.2.0",
     "optimize-css-assets-webpack-plugin": "^1.3.0",
-    "postcss": "^5.2.5",
-    "postcss-loader": "^1.1.0",
+    "postcss": "^5.2.9",
+    "postcss-loader": "^1.2.1",
     "qs": "^6.3.0",
-    "resolve-url-loader": "^1.6.0",
+    "resolve-url-loader": "^1.6.1",
     "rimraf": "^2.5.4",
-    "sass-loader": "^4.0.2",
+    "sass-loader": "^4.1.1",
     "style-loader": "^0.13.1",
     "url-loader": "^0.5.7",
     "webpack": "^2.1.0-beta.26",
     "webpack-assets-manifest": "^0.6.1",
-    "webpack-dev-middleware": "^1.8.4",
-    "webpack-hot-middleware": "^2.13.1"
+    "webpack-dev-middleware": "^1.9.0",
+    "webpack-hot-middleware": "^2.15.0"
   },
   "dependencies": {
     "bootstrap": "^4.0.0-alpha.6",