Fills in _available_packages early
Fills in _available_packages early

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