Binary-STL-fix and cleanup


- Fixed issues with viewing binary STLs in openmdao GUI.
- Fixed focusing geometry after loading into the view
- Added tests for binary STL and the new methods added to WV_Wrapper
- Updated WV_Wrapper generated binary files for PyV3DTestCase
- Added DeprecationWarning to some WV_Wrapper methods
- Added DeprecationWarning to wvserver.py
- Wrapped wv.c debug statements in #ifdef ... #endif
- Removed wvserver and wvclient code (tagged versions before doing so)
- Updated setup.py to build pyV3D with cython if it's available
- Updated README.txt
- Updated setup.py to bump version to 0.4.3