Minor change to make project name compatible with VS 2010

Visual Studio 2010 doesn't like the '/' character in the project names.
Added functions for PD-LED boards.
Revert "Added functions for PD-LED boards."

This reverts commit dec4955b15c932576829b6c6720bb14d3f595ddd.
Added PD-LED board functions.
Hardcoded number cleanup and more.

Made the hard coded number cleanup changes Gerry requested.
Also changed FillLEDWriteCommand to FillPDBCommand, now it can be used
filling out any PDB command (extra constants in PRHardware.h).
Merge pull request #6 from reltham/dev

Minor change to make project name compatible with VS 2010, plus PDB LED functions added to libpinproc.