make abs non-transparent. set dark holo scheme. resize drawingsurface to
fit.
resized canvas to fit completely on the screen when starting.
set actionbar size to 50dip. 
somewhere 12dip are hiding
included new icons
Merge branch 'master' of https://github.com/Catrobat/Paintroid into 8.49P_Remove_Transparency_from_ABS
fixed some tets
fixed eraser tests
removed statusbar height from calculations int tests
Merge branch 'master' of https://github.com/Catrobat/Paintroid into 8.49P_Remove_Transparency_from_ABS
Merge branch 'master' of https://github.com/Catrobat/Paintroid into 8.49P_Remove_Transparency_from_ABS
fixed center problem when cropping
fix flip tool icons
fixed fullscreen bug
fix hide toolbar test
changes init image
changed timout and mainactivty name
fixed tests
Merge pull request #31 from Catrobat/8.49P_Remove_Transparency_from_ABS

8.49 p remove transparency from abs
acceptance: @schmidiM [MS]
implementation: @galstc05 [SG]