Minor upgrade various devDeps

[thibmaek]

babel-plugin-transform-react-remove-prop-types@0.4.4, css-loader@0.28.1, file-loader@0.11.1, flow-bin@0.45.0, style-loader@0.17.0

Changelogs:

• https://github.com/oliviertassinari/babel-plugin-transform-react-remove-prop-types/releases/tag/v0.4.0
• https://github.com/webpack-contrib/css-loader/releases/tag/v0.27.0
• https://github.com/webpack-contrib/file-loader/blob/master/CHANGELOG.md#0110-2017-03-31
• https://github.com/webpack-contrib/style-loader/blob/master/CHANGELOG.md