add support for commiting task content
Merge branch 'develop' of github.com:villepetersson/DAT255-Grupp12 into develop

Conflicts:
	Server/src/se/chalmers/dat255/grupp12/CommitController.java
	Server/src/se/chalmers/dat255/grupp12/Task.java
Merge branch 'develop' of github.com:villepetersson/DAT255-Grupp12 into develop
fixed serious bug with illegal text formating in detailed tet view
Started fixing up date syntax.
Started fixing up date syntax #2.
Commented out a crashing row...
Merge branch 'develop' of https://github.com/villepetersson/DAT255-Grupp12 into develop
implemented support for content sync, start implementing support for date sync
Merge branch 'develop' of github.com:villepetersson/DAT255-Grupp12 into develop
fixed removing last todo in list of todos
revised layout of detailed view
Merge branch 'develop' of https://github.com/villepetersson/DAT255-Grupp12 into develop
confirm dialogs for logout and exit plus fixed modals in loginactivity looking diffrent
Add task button now disabled on empty text field
XML for new add contact widget
Tabs for handling adding new users
Fixed data passing and styling of contacts tab handling
Merge branch 'feature/uiBehavior' into develop
Fix for disable add empty tasks