<bugfix>Fix issue with Mac binary and the vistrails.py sys.path changes</bugfix>
<bugfix>Fix issue with Mac binary and the vistrails.py sys.path changes</bugfix>

We cannot delete subpaths because this screws up the Mac binary--everything is deleted.  Since I believe that users will rarely run into the issue where they start vistrails.py from a subdirectory of vistrails, I am removing this.

vistrails.py:
  - __main__: comment out the del sys.path calls

minesense/VisTrails,minesense/VisTrails,Nikea/VisTrails,celiafish/VisTrails,Nikea/VisTrails,minesense/VisTrails,Nikea/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,minesense/VisTrails,hjanime/VisTrails,hjanime/VisTrails,celiafish/VisTrails,hjanime/VisTrails,hjanime/VisTrails,VisTrails/VisTrails,VisTrails/VisTrails,celiafish/VisTrails,hjanime/VisTrails,minesense/VisTrails,celiafish/VisTrails,Nikea/VisTrails,VisTrails/VisTrails