Regression tests and NodePathUtils

[Paul Martz]

Hi all -- svn trunk of osgWorks now contains a CTest-based regression test
suite. http://www.vtk.org/Wiki/CMake_Testing_With_CTest

On Windows, you will have a RUN_TESTS target. On Linux/OSX, "make test".
Currently, one test is enabled, testnodepathutils, to test the new NodePath
utilities module.

NodePath utilities (#include <osgwTools::NodePathUtils.h>) provides a way to
identify a node in a scene graph using a string. Unlike the address-based
osg::NodePath, the string-based representation identifies a node even after
application shutdown and restart. This can be used, for example, so save a
selected node. (For example, see the osg-users thread "Saving the result of an
IntersectVisitor".)

Please let me know of any issues, and happy holidays to all.

--
-Paul Martz Skew Matrix Software
http://www.skew-matrix.com/