Merge pull request #84 from frankrousseau/master

Fix the email invitation flow
Merge branch 'master' of github.com:mycozycloud/cozy-agenda
add tags management
color depends on first tag (hashcolor)
mix list into calendar
client-side tags
fix server-side tags & convert
remove tabs in popover
brunched
handle splitted calendar & tags serverside
up jquery-ui for tagit plugin
improve tags management
missing translations
brunched
msic improvements
fix responsive
responsive & brunch
client build
set default calendar color to blue