I updated the Track Editor to 1.0 with several internal changes and some new features.
- number of owned pieces is stored in a seperate options file
- application asks for available pieces at startup
- show only "your" pieces option
- available/used pieces display now uses individual green/black/red display
- undo function
- mirror function
- comments box
- piece editor is hidden, not used for normal user
- several other small changes