Version 5.0.6 Release

Version 5.0.6 Release

Aug 6, 2009  Version 5.0.6
	* Use wxWidgets command-line processing rather than existing
	native processing.
	* ezset.cpp: Initialize scale settings in constructor
	* Improve titles of frames
	* configure.ac: Use wx-config to determine name of wxGL library
	* src/graph3dview.cpp: wx2.8 compatibility changesd to eliminate
	segv crash when creating 3D objects