Version bump and XCode error cleanup

Add more icons for high resolution screens

Merge pull request Moballo-LLC#16 from Moballo-LLC/sync-with-upstream

Sync with upstream

Merge pull request Moballo-LLC#12 from Moballo-LLC/dev

Release 4.2

Merge pull request Moballo-LLC#11 from Moballo-LLC/dev

Release 4.1

Merge pull request Moballo-LLC#8 from Moballo-LLC/dev

Release 4.0

Merge pull request Moballo-LLC#7 from Moballo-LLC/dev

Release 3.0.1

Merge pull request Moballo-LLC#6 from Moballo-LLC/dev

Release 3.0

Merge pull request Moballo-LLC#4 from Moballo-LLC/dev

Release 2.1

Merge pull request Moballo-LLC#2 from Moballo/dev

Release 2.0