Update Dutch translation
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
strdup locale to avoid use-after-free

To be sure you can use the returned string encoding the currently selected locale at a later time, you must make a copy of the string. It is not guaranteed that the returned pointer remains valid over time.
From https://www.gnu.org/software/libc/manual/html_node/Setting-the-Locale.html
Merge remote-tracking branch 'upstream/master'
update dutch translation
usermanual: proofreading thanks to David Vincent-Jones

also: added cmake hint to find saxon6.jar location
wb_presets: Adding support for several Pentax cameras
wb_presets: Adding whitebalance presets for "Canon EOS-1D X" and "Canon EOS 70D"
Merge pull request #324 from tuxuser/pentax_wb

wb_presets: Adding support for several Pentax cameras
Merge pull request #325 from tuxuser/canon_wb

wb_presets: Adding whitebalance presets for "Canon EOS-1D X" and "EOS 70D"
xmp tags: compress bigger binary fields
usermanual: note that XMP tags in output files have some limitations
Some minor cmake cleanups
Make EXR support optional
opencl: some minor fixes

- fix potential memleak
- make code more portable
- get rid of strtok
- fix some issues when compiling without opencl
Some code cleanups, trivial stuff
Merge branch 'master' into zxmp