rawspeed: preliminary support for Panasonic DMC-GH4

http://darktable.org/redmine/issues/10204
http://bugzilla.rawstudio.org/show_bug.cgi?id=632

thanks to martin schitter

color matrix still needs to be confirmed via a .dng
rawspeed: add 7DmkII warning for the time being
rawspeed: add NX300M alias for NX300
adobe_coeff: add NX300M (same as NX300)
wb_presets: add NX300M (same as NX300)
colormatrices: add NX300M (same as NX300)
wb_presets: olympus e-m10 (thanks to PolarFox)
Updated Dutch translation for QUI and manual
Merge pull request #770 from MRIG/master

Updated Dutch translation for QUI and manual
Add some quotes for good measure

This should fix compiling when there are spaces in the path to the
sources.
Some more quotes, maybe now it runs through?
Support for the Panasonic GM5 and LX100
Merge pull request #771 from pedrocr/add-panasonic-lx100-gm5

Support for the Panasonic GM5 and LX100
[l10n] update Greek translation
wb_presets: panasonic dmc-gh4 (thanks to martin schitter
adobe_coeff: cosmetic correction for dmc-gh4
adobe_coeff: Fuji HS50EXR support
rawspeed: experimental support for fuji hs50exr
wb_presets: correct dmc-gh4 firmware version
colormatrices: DMC-GH4 enhanced matrix (thanks to Martin Schitter)