Beta 1.0.7 - new stuff!

Enjoy!

BETA 1.0.7
- added file verification checking when loading a saved game
- exposed game cheats in build_cmds.txt which are used for testing (see github)
- New enemy: Item Bags. Usually enemies will use Item Bags to set traps
- Added new area: Swamp (accessible at level 5)
- Forest now has a level cap for enemies and will only spawn up to a certain level
- Swamp spawns higher level monsters, spirits and item bags
- Forest spawns lower level monsters and item bags
- Buffed attack power for various higher level enemies