1.3 Update

A couple of updates:

• Add Sigma. You can now play against him.
• Change the player's default name in reaction to the above.
• Add a choice for the player to manually decide the match-up each round. It's not recommended though, as it can get tedious.
• A handful of characters will now attempt to break betray loops should they occur. 
• Many characters are now more forgiving towards people who are constantly at 1 BP and are forced to betray.
• Clean up UI when playing on mobile.