Minor uptade in French usermanual
Update French usermanual
Merge branch 'master' of https://github.com/darktable-org/darktable
Update French usermanual
Merge branch 'master' of https://github.com/darktable-org/darktable
cmake: use LibFindMacros
Silence a CMake warning
cmake: fix error in FindLibsecret.cmake
Fix a small leak found by Coverity
Tiny code change to fix show_icons_in_paint_c.pl

... by removing some intraproject dependencies from the code.
Proofreading of the French user manual (the first 50 pages)
Merge branch 'master' of https://github.com/darktable-org/darktable
OSX: fix DPI detection
fix possible use of uninitialized value in previous commit
[l10n] Update Spanish translation
Set all content of buf[PATH_MAX] to 0 upon allocation

Makes bt's that contain such buf's a little bit more beatiful.

Relevant Coccinelle patch:

@@
type T;
identifier tmp;
@@
- T tmp[PATH_MAX];
+ T tmp[PATH_MAX] = {0};
Updated Catalan translation
Merge pull request #776 from josepvm/master

Updated Catalan translation (fixed a single minor error I've discovered just now, sorry)
Allow compilation without usermanual sources

... and fix the release script accordingly. It only used to work due to
a typo.
Prepare for a little nicer code formatting