[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)
rawspeed: Canon EOS 7D Mark II experimental support

my initial reservations about adobe's d65 matrix were completely wrong an unfounded

it was just the basecurve that pulled up brightness a bit affecting the perceptual saturation in the greens particularly

i processed a colorchecker chart myself and got no extreme differences
noise profile: panasonic dmc-gh4 by martin schitter
Merge pull request #772 from jinxos/master

[l10n] update Greek translation
wb_presets: Fuji HS50EXR (thanks to Andre Carvalho)
adobe_coeff: pentax k-50
adobe_coeff: prevent accidental partial matches
Updated Catalan translation
Merge pull request #773 from josepvm/master

Updated Catalan translation (some minor fixes)
Fix build without JsonGlib
Fix building of file manager :)
Updated Danish translation
Exposure IOP: break deflicker a bit more. To be reverted once 1.6 is out!
Merge pull request #775 from pryds/master

Updated Danish translation