synchronized methods
doesn't crash when dead. NotificationCreator
Bugs: returnpopup nt shown & notis dnt dissapear
Merge remote-tracking branch 'origin/Dev' into bugfix_notifications_majoulf

Conflicts:
	CrayCray/src/se/chalmers/dat255/craycray/activity/MainActivity.java
	CrayCray/src/se/chalmers/dat255/craycray/model/NeedsModel.java
Merged "Database_fixes" into "Dev"
changed constants and set thread to update every second
visual changes and added vibration
merge fix
visual changes and added vibration
Merge branch 'Dev' of https://github.com/Jonate/Dat255-CrayCray into Dev
visual changes and added vibration
added testmethod in needsmodel
no changes
Merge branch 'Dev' of https://github.com/Jonate/Dat255-CrayCray into Dev
mergefix, added testmethod in needsmodel
Merge branch 'testing' into Dev
Merge branch 'Dev' of https://github.com/Jonate/Dat255-CrayCray into Dev

Conflicts:
	CrayCray/src/se/chalmers/dat255/craycray/activity/MainActivity.java
changed databasetestmethod
buttons graphics
Merge branch 'Dev' of https://github.com/Jonate/Dat255-CrayCray into Dev