Dev Log: Mar 4th

Notes: Don't let the slim list fool you, this was a heavy workload day - the save/load system turned out to be a beast to write, which is why I sadly have no new version to release yet. I'd estimate the feature is around 70-80% ready, once I iron out the final glitches.

-Added function to limit items based on max stack

-Fixed issue with upgrade menu spawning with wave complete banner

-Added phase 2 to boss

-Added code to allow for XP overflow

-Added saving/loading system, pending some bug fixes.