make upload button looks like other cozy buttons
improve responsiveness
Merge branch 'master' of github.com:mycozycloud/cozy-files

Conflicts:
	client/public/stylesheets/app.css.map
0.2.0
0.3.0
fix file names
0.3.1
Merge pull request #71 from frankrousseau/master

Fix file download for public folder
Improved: build workflow. client/public is not versioned anymore. Files are now digested. Assets are now minified.
Added: files to the asset folder
Fixed: configuration in order to work with build/ version
Built
Removed: minification because it's just not working properly with source maps
Built
(re)Added: 'add' button to the sharing modal
Built