* Added log4net dependency to physxplugin in prebuild.xml.
* Added missing m_log fields to classes.
* Replaced Console.WriteLine with appropriate m_log.Xxxx
* Tested that nant test target runs succesfully.
* Tested that local opensim sandbox starts up without errors.
Known issue: after TP, the self client doesn't see the animations going, but others can see them. So there's a bug there (TPs only, crossings seem to be all fine).
Untested: did not test animation overriders; only tested playing animations from the viewer.