Use config debug level not force things to debug debug level.
Return the number of packets in the send queue rather than the number of packets that have ever been in the queue.  This isn't a terrible problem, it would just cause more flushes than are actually required.
Finished register network tests.

A little cleaning.

The register execute network tests seem to be failing in a "make net" but not when run individually via "BUSTED_OPTS='-t register' make net"
Correctly set the depricated getRegDP call.
Add a pdf target to automatically generate the ldoc in PDF format.
Fix  bug with setAnalogType.