Fixed inital state of Palette's actions in View Menu.
Fixed inital state of Palette's actions in View Menu.

--
gui/vistrails_palette.py
 QVistrailsPaletteInterface.get_action_tuple()
   - setting the checked state according to palette's visibility.

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