Only show main elements in desktop sizes
JS events for entering and leaving desktop/mobile mode.
Move main choices list into layout for mobile
Merge pull request #1 from gauthierm/mobile

Add mobile/desktop size JS triggers
Move choice buttons to/from mobile layout.
Move choices modal footer to main template for mobile
Wrap choices list for easier dom manipulation
Update JS for new markup.
Move footer content back and forth for mobile.
separate choice and choice-modal LESS
Don't wrap choices on mobile
Hide unselected options on mobile