Found problem, running tests to find possible side effects of quick fix
Merge branch 'master' into Issue157_UndoCuttingImage_FullHD
Added a few temporary comments
Replaced hardcoded 640px values with display width/height
Made failing test flaky...
Merge pull request #162 from Catrobat/Issue157_UndoCuttingImage_FullHD

Issue157 undo cutting image full hd
Implementation: @dladenhauf [DL]
Acceptance: @galstc05[SG]