Fix retina images filenames based on latest Bourbon
Make bouttons on small screens larger
Minor typo fix
Merge pull request #1 from loicm/master

Work on content of home page
Fix vertical rythme after content updates
* remove dead styles too
* Related updates: https://github.com/craftsmen/web-en-vert/commit/bec3b2950ec7b0ed39dfe7047f37640536627a3f
Extract people data to a separate json file
Edit home page to announce next event