Re add 'clean:build' task & 'configs' when building

No clean:build create sometimes some polutions (eg by fakeImagemin).
Configs need to be done each "first time" but avoided foreach
livereload call (avoid long compass build)
Re add video for switching fn & ctrl keys.
Include just what I use from compass. Better performance.
Rename responsive embeds to "flex-media"
Add clearfix for .module
Add author section on posts for all languages

This uses some class of necolas/suit-utils
Add necolas/suit-utils to bower