Version 2.2 bugfix release - MacOS

Dear Mac users - my apologies that the DMH v2.2 took so long to get caught up on MacOS, but here it is!

Version 2.2

• Fixed crash bug when removing a combatant from a battle
• Selection of combatants when "Apply effect" fixed
• Spellbook shortcut (Ctrl-H) fixed
• New effects in the battle tab are added to the middle of the view rather than the top-left corner
• Bugs in ribbon menu battle tab: Add Radius button show add a radius & copy/paste tool tips
• Bestiary import now properly copies images when importing