More fixes on account creation
Add client side notifications (toasts)
[front] Add a button to refresh messages
Fixes, fixes, fixes
[front] Edit draft messages
Update Favicon
Merge branch 'master' of https://github.com/cozy/cozy-emails

Conflicts:
	server/controllers/mailboxes.coffee
	server/controllers/messages.coffee
	server/models/account.coffee
[refacto] cleanup account
- removed tmp attribute mailboxes
- moved smtp function to account_smtp
Fixes and cleanup related to previous merge
Fix tests
Add a test on minimum Casper version
[refacto] remove imap_processes
- move the methods to the models (in separate files)
- fetch mails flags on refresh
- dont get all mailbox UIDs in RAM at once
to be squashed
some test fixes
Discover STARTTLS and SSL parameters
Merge remote-tracking branch 'brice/master'

Conflicts:
	server/controllers/messages.coffee
	server/models/account.coffee
	server/processes/imap_processes.coffee
[Front][Test] Use env variable for base URL
[misc] various fixes for tests
add aditional info about testing
add script to NPM manifest to run client tests