- New GAL draw layers for GerbView
- Improved bounding boxes for Gerber shapes
- Switched to use of SHAPE_POLY_SET for polygons
- Add GAL methods to support selection and rendering
- Add GUI support of editing GAL options
- Rename get/setActiveLayer to Get/SetActiveLayer to match convention
Fix a very minor other issue (due to a minor bug in wx 3.1)
Displays the full graphic layer name of the selected item in message panel (instead of just the graphic layer number)