Add a plugin to preview images attachments
Bug fixes and add some Casper tests
Bugfixes on settings
Fix message display in Chrome
remove artificial account creation timeout
[client] refactor unread counts handling & mailbox lists
implement draft vs sent handling
@TODO : need tests
add comments TomDoc styles
[server] minor refactoring
add message creation (for drafts & sent)
add biscotto options & ignore doc (for now)
[test] autodetection of mailboxes
Merge remote-tracking branch 'brice/master'

Conflicts:
	client/app/constants/app_constants.coffee