Merge pull request #19 from clochix/master

Messages compose and send
a couple of French strings lost in translation
Add a form to edit settings
Merge branch 'master' of https://github.com/cozy/cozy-emails
Merge pull request #20 from goofy-bz/patch-1

a couple of French strings lost in translation
Fixed: removed useless statements that cause the app to crash if it had no data
Built
Fixed: code style
Fixed: buildUrl performed mutations on the router's state
Added: missing dependency
Upgraded: permissions
Upgraded: permissions
Updated: instructions to use the app
Merge branch 'master' of https://github.com/cozy/cozy-emails