lens iop: Automatically set scale.
Improve filter on import

Instead of showing all images, we set the filter to the smaller of the
default import rating and the current filter. This ensures that the
imported images are shown, but that we don't reduce the filter
unnecessarily.
Update comments for improved import filter handling
Keep old import filter reset for collect operations
Added support for sorted lens lists in lens correction module.  Needs LensFun >= 0.2.9.
added option to overwrite file in export to file on disk.
Updated French manual (~10% done)
I'm gonna translate the usermanual into French
Updated translation (~10% done)
updated to remove conf usage
Merge branch 'master' of https://github.com/darktable-org/darktable
Makes the styles window a bit higher to list at least 5 styles.
Italian translation updated
usermanual: focus detection example
Fix film import with >1 tags being assigned

All this signal business is quite messy. I hope that I didn't introduce
new bugs. :/
Updated Danish translation
Merge branch 'master' of git://github.com/darktable-org/darktable
Updated Dutch translation
Merge pull request #351 from MRIG/master

Updated Dutch translation
collect : correct bugs with items selection