RotationToolIntegrationTests added
rotation tool tests
Basic rotationTool implemented
correct rotation tests
cosmetic + resetScaleAndTranslation after rotation
de stings
change icon-size
add rotate to BaseTool
clean code
remove failing if in BaseIntegrationTestClass
add testHelpDiallogeForRotate
testIfBitmapIsCenteredAfterRotation added
small changes
Merge branch 'master' of https://github.com/Catrobat/Paintroid into
11.03_rotation_tool

Conflicts:
	Paintroid/res/values-de/string.xml
	Paintroid/res/values/string.xml
	Paintroid/src/org/catrobat/paintroid/tools/ToolFactory.java
	PaintroidTest/src/org/catrobat/paintroid/test/integration/BaseIntegrationTestClass.java
straight line tool without tests
Merge branch 'master' into P11.01_straight_line
merged master
Merge remote-tracking branch 'origin/master' into 11.03_rotation_tool

Conflicts:
	Paintroid/src/org/catrobat/paintroid/tools/ToolType.java
using placeholder icons
Merge remote-tracking branch 'origin/master' into 11.03_rotation_tool