1.2.0 Release

This release adds additional menu settings, new end game stats, and additional bug fixes.

• Un-pause the game when the pause key is pressed again
• Improve homing missile behavior by spreading out multiple missiles since the previous missile can destroy adjacent targets
• Record enemy kills in end game stats
• Fix some floating rocks on the Big City map
• Fix some projectile hit registration bugs that prevented enemy tanks from being destroyed when hit in some scenarios
• Add "Best Item" stat to end game stats
• Add separate music, SFX, and ambience volume controls in addition to the main volume control