update main icon (same size as others)
improve compose view
Merge branch 'master' of github.com:aenario/cozy-emails
Merge branch 'master' of github.com:clochix/cozy-emails

Conflicts:
	client/app/styles/application.styl
Merge branch 'master' of github.com:aenario/cozy-emails
Merge branch 'master' of github.com:clochix/cozy-emails
build
use add & delFlags instead of setFlags
improve compose ux
Merge branch 'master' of github.com:clochix/cozy-emails

Conflicts:
	client/app/components/compose.coffee
iStyle of selected message