Stopped find dialog from being destroyed when closed
Interleaving seems to be working
Fixed a few ordering bugs
Search behaviour; made ui drop current item on page switch
Merge branch 'search'

Conflicts:
	xournal.glade
Moved thumbnails to idle task and added refresh button
Merge branch 'preview'

Conflicts:
	src/xo-callbacks.c
	src/xo-file.c