fix(notification): display unread items
fix(tasks): Fixed wrong date assigning.

SD-72
Merge remote-tracking branch 'ozan/task-date-fix' into devel
feat(tasks): task preview
feat(tasks): Desk switch enabled.

SD-734
feat(task): task preview fix
feat(notification): add link to item

SD-722 SD-656
fix(mentions): remove unused file
Merge remote-tracking branch 'petr/devel' into devel
chore(bower): update angular to rc2
fix(notification): add style to links
Merge remote-tracking branch 'nikola/devel' into devel
fix(users): make validators work with angular 1.3

the way validators are working is changed since 1.3rc1
fix(mentions): sort users in list

and limit them to 5

SD-656 SD-743
feat(tasks): Task assignment implemented.

SD-728
SD-733
fix(tasks): fixed minor issues.
fix(desks): Fixed desks service.
fix(planning): Updated coverages to use new assignee-box.
feat(desks): add wizard for desk editing
feat(desks): fix message handling in wizard