AddBrickFragment added and actionbar implemented
added listing bricks in categories to addBrickFragment
Merge remote-tracking branch 'origin/master' into addBrickFragment_Ilija
Finished AddBrickFragment and added Tests
Added license text to AddBrickFragmentTest
Merge remote-tracking branch 'origin/master' into addBrickFragment_Ilija
Added displaying of user variables
minor change in XMLValidatingTest
Merge remote-tracking branch 'origin/master' into addBrickFragment_Ilija
Fixed some tests were scrolling down wasn't done properly
BrickValueParameterTest adapted for scrolling in AddBrickFragment
Deleted reseting of visibility of bottom bar
added test for looking up if category variables is set properly in the actionbar
fix for ScriptFragmentTest testBackgroundBricks
fixed BrickDragAndDropTest testAddNewBrickFromAnotherCategory
Merge remote-tracking branch 'origin/master' into addBrickFragment_Ilija

Conflicts:
	catroidUiTest/src/org/catrobat/catroid/uitest/content/brick/BrickValueParameterTest.java
testForeverBrick and testNestedForeverBricks commented for testing purposes on jenkins
fixed AddBrickFragmentTest
Adapt drop down menu of SetVariableBrick
moved 2 Tests

Moved tests from MyProjectsActivityTest to ProjectActivityTest
(testCopySpriteWithNameTaken, testCopySprite)