allow zoom under the "fit to screen" limit
smaller zoom steps under "fit to screen"
Merge pull request #208 from darktable-org/gnd_fix

Gnd fix
borders.c: fix typo portait
colorspaces: (again) this should be fine with Adobe's trademarks as well
darktableconfig: bring lcms2 description in line with recent changes
splittoning: more bauhaus love
[l10n] Swedish update: 7 fuzzies, 1 new string.
Fix some french translations and add some new ones.
splittoning: sync all sliders correctly
purge images: tony arnold's version.
make it harder to go under zoom-to-fit level
opencl: kernels for colormapping module
Merge branch 'master' into colormapping