v1.2.2: Bugfix release

Things we fixed

• The postcss improvement of the previous version was incomplete, and didn't work for .css files imported inside of .vue files. This update adds postcss-import to the postcss config, and with that, postcss is applied to all css. ( #1053 )
• The default config of webpack-dev-server is very noisy in your browser's console - every HMR action logs multiple lines. After @Frondor raised our awareness about this, we reduced the clientLogLevel option of the devServer to only log warnings and errors. ( #1063 )

Things we cleaned up

• remove unused express dependency ( #1060 )
• The css-loader config had an unnecessary minimize setting - we removed it (#1056 ).