Make finding resource path more accurate.
Make finding resource path more accurate.

The old way would fail if there is a mesh name,
which is a substring of another mesh name.

--HG--
branch : ogre-gsoc2013-progressive-mesh-improvements

digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre,digimatic/ogre