Preperation Screen Added

Happy post demo day depression everyone!  I'm not sure if I intend to do regular changelogs. but I felt like writing what I've added and a few thoughts.

- Added a preparation screen.  Select units to take into battle, and trade items before starting a level.  Inspect the map as well!
- Fixed General DD bugs.  Most notable the issue causing enemies to attack from VERY far away, or too close in archers cases.
- Spruced up the 4th level with some more trees for better gameplay
- Added a few chest
- Fixed spelling errors

My main notes for demo day where:

Demo day notes:

    - Narrativize, Narrativize,Narrativize.  We need characters and a story. Random events should include 2 maps at least, with goals other then rout

    - Background music!

    - Things are pretty hard.  Ease up on difficult or give higher level units to start.

    - Need a between camp scene between levels, where people can trade, buy, sell etc.

    - Pick/Name units before game start?  Something to make people more interested in them

    - Zero damage sound effect

   - Mouse controls

Like the top comment says, my main content thrust is going to be adding some kind of narrative or story to the game, but I still want the player to direct the choices in typical "roguelite" fashion.  Right now my main goal is adding a kind of "world map" that players can navigate under a time limit before the next story level.  Something like FTL, but you spend a bit long on each map, and the end fight is a set piece.  

This is just brainstorming though, hopefully I'll have some progress to show in the next few days.