Merge branch 'development'
handle case where mailbox object is badly configured
add callback handling when server is badly configured
rebuild frontend
remove useless procfile
change declaration order
better error handling
change password field name
improve job terminations
change password field name on client side
front end cleaning
small debug
code cleaning
debug the fact that mail was always modified when selected
add function to mark a mail read remotely
when a message is marked as read locally, the message is mark as read remotely
add a job to clean other jobs

because cozy mails can generate zombie jobs
debug mailbox display
remove password logging
add synchronization stuff