fix a memleak.
fix a couple of strings.
collection: add serialization as full member.
move: switch to new film roll after move

this way you can easily navigate there and back using recent collections.
use case: import the folder /media/MASS_STORAGE and then move to your harddisk.
you don't want to select the lengthy file name twice (once move, then again collect)
g_type_init got deprecated, fix compile.

Why can't the GTK folks just leave us alone?
Fix copy/paste error in Lr grain import.
Minor style fixes.
Add support for spots Lr import.