key accelerators: fix a few potential NULL pointer references. fixes #9632
Clarify that our linear RGB is Rec709
Fix some minor mem leaks due to metadata handling

This should even work if we ever allow more than one result per tag
Update French translation.
Italian translation updated
Merge pull request #354 from bartokk/master

Italian translation updated
Updated Dutch translation
Use US English in hotpixels

Credits go to Moritz Moeller for finding this.
Merge pull request #355 from MRIG/master

Updated Dutch translation