Temporary save of the hopefully faster flood-filling algorithmn
Finished QueueLinearFloodFiller implementation
Currently working directly on Bitmap, next version should work with pixels instead
Added source for implementation
Finished QueueLinearFloodFiller with dirt pixel access
Merge branch 'Queue_Linear_Flood_Filler' into 8.02P_Fill_bucket_tool

Conflicts:
	Paintroid/src/org/catrobat/paintroid/command/implementation/FillCommand.java
	Paintroid/src/org/catrobat/paintroid/tools/implementation/FillTool.java
Added JUnit tests for the fill-tool
Removed duplicated test class
Reordered test classes
Added integration test for the fill-tool