Patch v0.2.1 Released

Version 0.2.1 Release!

I wanted to get a quick turnaround on this since someone mentioned issues with saving, and boy were there. That's what I get for thinking I could find all the issues in few test sessions. This should fix a lot of issues with saves and other minor issues. it includes some UI tweaks, both to looks slightly less ass and to fix some issues, converted more of the v0.1 ui code to the v0.2 ui code. Hopefully if I have some time I'll get another patch out soon as there are still some other issues I found while testing tonight that I don't have time to fix before this release. Mostly depends on what goes on at work this next week. 

Fixed:

- Fixes an issue where the code to check/create the save directory on startup existed, but wasn't being called (oops)
- Fixes an issue  that occured when generating the buttons for save slots if there was a gap between the saves (i.e. you had slot 0 and slot 2 saved)
- Fixes an error that occurs when attempting to load an empty save (in the future this should prompt a start new game dialog, but that's not in yet)
- Pickupable items (coins, slimeballs) were sticking around when leaving the dungeon to the map screen.
- Fixed level up menu hiding tavern UI and showing old merc background.
- Have not been able to reproduce the "points available" counter being off. It might have been due to another bug which has been fixed.
- Max gut displays wrong value when gut is maxed at certain thresholds.
- "You Died" text can remain on screen if you leave the tavern too quickly after dying
- Ability equip status is not saved/reset (if you load while one is equipped, it will stay in the equip slot, but not use-slot)
- writing the entire buffer to file even though we use only part of it
- List of abilities unlocked aren't saved properly
- List of abilities unlocked aren't loaded properly (their ids are always 0)

Known issues:

- There are some circumstances where an ability cooldown can get frozen. Possibly from dying with it on cooldown.
- ability icons in witch's wagon display as uninteractable if you attempt to buy them without enough gold despite not having been purchased
- There are more load issues than sounds, sometimes enemy sprites don't load the first time you encounter them.
- Options aren’t saved