Fix bux 923: Wysiwyg smart enter handling
Merge pull request #18 from taigaio/wysiwyg-smart-enter-handling

Fix bux 923: Wysiwyg smart enter handling
auto increment markdown list number
Fix user photo url on nav bar.
Add events service implementation.
Add taigaEvents module to app.
Fixup.
Refactor tgUsStatus directive (popover) for make it compatible for real time reload of backlog.
WIP: backlog controller realtime reload.