testchanges to linear layout, before arrow

Changed to relative layout
Merge branch 'master' into adaptLookFragment
- changed checkbox padding 
- correct vertical centering if hide/unhide
- change image border to wrap the content correctly
- made the whole layout clickable and not just the button
added context menu entry for fireing up paintroid
Switch to paintroid now also possible through an Action Bar Menu Item,
temporarily called "Edit In Paintroid" as briefly discussed with Vesna
and Thomas.
formatted code and cleanup
changed existing tests for new layout
changed checkbox
temporary testtry commit
added new tests for accessing paintroid
added licence headers, refactored tests, added string translations
merged and padding
Merge branch 'master' into lookFragmentRedesign
using arrow resource already in master now
deleted unused drawable
refactored xml names
merged and added missing licence header
spell correction
Merge pull request #202 from Catrobat/lookFragmentRedesign

Look fragment redesign
Merge branch 'master' into ActionsPerformanceQuickFix