Remove unused code.
Make string part of translation.
Better sharing code for copy and copy parts.

Also fix the circuitry to properly activate the paste/paste all button
only when the dialog is properly activated. If the cancel button is
clicked the paste buttons status is not changed.
Add hist_dialog.c to the list of unit to translate.
Update french translation.
Merge pull request #131 from TurboGit/update-french-translation

Update french translation
Merge pull request #129 from TurboGit/minor-cleanup

Minor cleanup
French UI updated for consistency
Albanian UI updated thanks to Besmir Godole
opencl: fixed deviation versus nlmeans cpu codepath
noise profile: panasonic gx1 by richard wonka fixes #9011
Set properly Subject Distance for Nikon cameras. Fixes #8541