Version 0.5.1.5 Hotfix

Hello fellow mercenaries,

Hope you are liking the new game mode! Here are just some quick fixes.

Changed the font for Usernames in the Survival Leaderboard so that both Japanese and English characters will show.
Added a 60 second timer on Mob XPs to prevent later game runs from being performance heavy.
Fixed a bug where Side Objectives did not shuffle correctly.