Merge pull request #594 from ospalh/hotfix-2.3.1

Use local files when changing icon to blue
MM Editor: Only delete temporary media when new path is different from old path
Merge pull request #596 from timrae/googleAddImage

MM Editor: Only delete temporary media when new path is different from old path
Bumped version to 2.3.1beta2
@branch-specific
Updated strings from Crowdin
Bumped version to 2.3.1beta3
@branch-specific
Fix bug where filtered deck controls not shown when changing to custom study
Merge pull request #597 from timrae/customStudyRefresh

Fix bug where filtered deck controls not shown when changing to custom study
Do turn the icons blue