Fixed a vicon tracking bug:  o Client tried to turn on streaming every time update was    called instead of just once.
Fixed a vicon tracking bug:
 o Client tried to turn on streaming every time update was
   called instead of just once.

WearableComputerLab/LibWCL,WearableComputerLab/LibWCL,WearableComputerLab/LibWCL,WearableComputerLab/LibWCL