initial commit
eraser seems to work now (no idea what i did... ) 
fix test
tests
fixed color setup on tool change
small changes, but commtented it out
fixed failing test
test fixes, update to new robotium version.
some fixes
remove resetbrush from setUp
fix resetBrush
fixes in junit tool tests
removed duplicate test
Merge branch 'master' into 8.xx_Issue18_Eraser_Tool
Merge branch 'master' into 8.xx_Issue18_Eraser_Tool
fixed compiler error
merge master
fixed merge bugs
removed duplicate creation of dialogs in basetool
Merge pull request #28 from Catrobat/8.xx_Issue18_Eraser_Tool

8.xx issue18 eraser tool
acceptance: @schmidiM [MS]
implemented: @galstc05 [SG]