fixed CropTool (Command) test, changed log info in CropCommand, deleted
some not necessary lines in FlipTool
apply fix
Merge pull request #66 from Catrobat/I59_image_load_fix

apply fix #59
Implementation: @galstc05
Acceptance: @michaelmuenzer
Merge branch 'master' into I54_Bitmap_not_centered_after_undo