Modified WWLevelSet to enable configuration of the tileWidth and tileHeight during initialization. Replaced the WWTile resolution property with a texelSize property taken from the parent WWLevel. Configured the WWTessellator's detail hint origin for a tileWidth and tileHeight of 5.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1190 1c351a6f-456c-4935-88af-207f26c224cf
Implemented ordered renderable sorting.

git-svn-id: http://worldwind31.arc.nasa.gov/svn/trunk@1191 1c351a6f-456c-4935-88af-207f26c224cf