<bugfix>Opened vistrails were not selected</bugfix>
<bugfix>Opened vistrails were not selected</bugfix>

* This was broken by commit b553987185
* This also caused strange selection behaviour

gui/collection/workspace.py:
- QVistrailList.connect_current_changed, disconnect_current_changed:
  Also connect itemClicked so that already selected items can be selected
- QVistrailList.setSelected:
  Do not call setCurrentItem

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