Beta Patch 1.6

Patch Notes (VERSION: BETA1.6)
- (v1.5s) Fixed issue where a Steam username with special characters was messing up the configuration file. Now, all non-Steam versions of the game will use "Player", while Steam version will grab the user's name from Steam instead of grabbing once and saving to a file.
- Fixed double mouse cursor in video
- "theroom" now links to "thetraps"
- world 6: added marker sprite for optimization (top)
- Storyboards for all characters
- Editor:
- Added "Selection Tool"
- Added Cut/Copy/Paste (works for tiles only right now)
- Added Undo/Redo
- fixed painting - it actually paints the whole area now!
- Custom Selection Area Sprites
- Show dummy area from clipboard