Pano grid/stack interaction

Two minor UI bugs, both related to grid interactions after creating a pano. I specifically notice the behavior after creating a large pano with 6+ images.

1. After clicking "merge" button when creating a pano (inside an album, did not test in all photos). Do NOT touch anything, let the process finish. When done the pano with associated images are stacked which I thin is correct. However if you had selected six images, the pano plus five other images are now selected. Which adds to a slightly strange behavior when trying to move around; you effectively need to deselect images to be able to go forward (I normally use control-D)

2. When in grid, and you select the stack icon you get a nice little film strip on the bottom. I then normally set some meta-data associated with the merge I just created. Afterwords clicking another image does not close the stack film strip, and the behavior again is a little odd until I deslect everything and then go forward.

Tim