Fixed bug where zoom_lock wouldn't be respected if switched to fullscreen and back.
Fix issue where removal of files (not using the pim deletion method) caused an error, since the index wouldn't get updated.
The invalid path is removed and an error message is printed to STDOUT.
0.4.2: Fix bugs with zoomlock and invalid paths.
Handling of quit() and save position changed. It's possible to decide to save or not. Thank goes to rzarzynksi as I saw this in his fork of pim.