upgrade libs

* autoprefixer
* css-loader
* method-override
* optimize-css-assets-webpack-plugin

package.json

@@ -87,7 +87,7 @@
     "i18next-sprintf-postprocessor": "^0.2.2",
     "markdown-it-blockdiag": "^1.0.2",
     "md5": "^2.2.1",
-    "method-override": "^2.3.10",
+    "method-override": "^3.0.0",
     "mkdirp": "~0.5.1",
     "module-alias": "^2.0.6",
     "mongoose": "^5.0.0",
@@ -112,7 +112,7 @@
   },
   "devDependencies": {
     "@alienfast/i18next-loader": "^1.0.16",
-    "autoprefixer": "^8.2.0",
+    "autoprefixer": "^9.0.0",
     "babel-core": "^6.25.0",
     "babel-loader": "^7.1.1",
     "babel-plugin-lodash": "^3.3.2",
@@ -131,7 +131,7 @@
     "colors": "^1.2.5",
     "commander": "^2.11.0",
     "connect-browser-sync": "^2.1.0",
-    "css-loader": "^0.28.0",
+    "css-loader": "^1.0.0",
     "csv-to-markdown-table": "^0.4.0",
     "date-fns": "^1.29.0",
     "diff2html": "^2.3.3",
@@ -166,7 +166,7 @@
     "normalize-path": "^3.0.0",
     "null-loader": "^0.1.1",
     "on-headers": "^1.0.1",
-    "optimize-css-assets-webpack-plugin": "^4.0.2",
+    "optimize-css-assets-webpack-plugin": "^5.0.0",
     "plantuml-encoder": "^1.2.5",
     "postcss-loader": "^2.1.3",
     "react": "^16.4.1",