Cleans gles code

* uses pointer only to mark geometry as processed
* remove unuseful options alteration
Fixes gles GeometrySplitterVisitor

* scene graph was modified while visiting it leading to possibly unprocessed large geometries
* selecting wireframe lines was modifying a buffer in place leading to bad performance
Cleans osgjs update
Merge pull request #20 from mrchlblng/feature/inlined-wireframe

Feature/inlined wireframe