Version 1.2	Tue Dec 11 15:11:54 EST 1990

1. Fix a bug in ArcDefOutput() (arc.c), as it does not needed to tesselate
   the side surfaces into smaller pacthes for NFF and RAD file

2. Fix a bug in PolylineDefOutput() (polyline.c), as a line of code for
   offseting a polygon with width is missing when outputing NFF file.

3. Add output for Greg Ward's RADIANCE package.

4. Add an option for defining string linking block name and layer name.

5. Add an option for selecting the method of joining block name and layer name.
   Currently only two methods are supported.

6. Add an option for selecting the prefix string for a name starting with a
   non-alpha char.
