Added required return that should have been in the last push.
Initial file creation and build-system integration for the YEI 3Space driver.  This is a renamed, but not yet modified 5DT driver that will be modified to communicate with the YEI serial-port 3Space units.
Starting to implement the YEI 3Space Sensor.  Not yet getting any response from the device when using the binary protocol (no data received in ::reset).  We can talk to it at either 9600 or 115200 via a terminal program using the ASCII protocol, so plan to try that next.  Did hook in parsing of the vrpn.cfg file entry and running of the server in the Generic server.
Now configures LED color and mode, and handles resetting the device and asking it to stream.  None of the reading code is finished, so it just continually resets.
YEI 3Space Sensor driver appears to be sending reliable data.  Need to check the parsing of the quaternions, but temperature and other analogs seem fine.
Implemented commands to calibrate gyroscopes on startup and tare on startup.  YEI driver seems to be working and implementing all of the features present in the 3-Space Sensor Suite application; some at server start time (LED color, tare, calibrate gyros) and others at run time (report orientation).  It also reports the corrected analog data values for the sensors, temperature, and confidence factor.
Adding an example configuration line for MacOSX for the YEI 3Space Sensor (worked on a Macbook Air).
Adding a comment to vrpn.cfg for starting the YEI device; this line worked on a laptop running 64-bit Ubuntu (had to run vrpn_server as root to get permissions on the port).
Adding comments on YEI use on the mac and linux to vrpn.cfg.
Remove separate Wii head tracker application: it's been in the generic server a long time.

No need to build an individual executable for this one server.
If a Wiimote Head Tracking-specific server is needed, allow me to suggest
https://github.com/rpavlik/wiimote-head-tracker-gui in either the master
or Qt branch.
Fix warning in python binding.
Adjust CMake build to handle either old or new jsoncpp
Switch to using VRPN org on GitHub for submodules, and update jsoncpp. Requires git submodule sync and git submodule update!
Merge remote-tracking branch 'upstream/master'