sawNDITracker - mtsNDISerial.cpp: add longer sleep in ResetSerialPort to work with polaris in mock or.
sawNDITracker - mtsNDISerial.cpp: add warning message for missing CISSTNETLIB. Added a buffer boundary check to prevent comparing '\r' to -1 buffer position.
sawNDITracker - mainPython.py:  add required includes for cisst data types. Remove the linux platform fix that caused seg faults when cisstCommonPython was imported. Add comments. Add functional example to initialize the tracker and get tracker body positions.