fixed flickering ortho problems on some machines


git-svn-id: svn://svn.code.sf.net/p/pymol/code/trunk@4034 21428953-86e3-433d-9a34-2224224d0fc8
* fixed load_traj with stop/max arguments. Thanks to David Osguthorpe for the patch.
* fix pymol.importing.read_mmodstr
* proper numpy support (ObjectMap.c)
* take out broken experimenting.expfit
* fetch_path: graceful error handling when writing file fails


git-svn-id: svn://svn.code.sf.net/p/pymol/code/trunk@4035 21428953-86e3-433d-9a34-2224224d0fc8
Merge branch 'upstream'