Backport enough dcraw to get the Pentax K-3 WB
Merge pull request #731 from pedrocr/fix-pentax-k3-whitebalance

Backport enough dcraw to get the Pentax K-3 WB
rawspeed: preliminary LEICA D-LUX 6 (=LX7) support
lua usermanual : fix a typo
usermanual: minor structural improvement
usermanual: give credits to the translators of this manual
updated Dutch translations usermanual
Merge pull request #733 from MRIG/master

updated Dutch translations usermanual
updated Dutch translations usermanual
Merge pull request #734 from MRIG/master

updated Dutch translations usermanual
OSX packaging: update to GCC-4.8 and OS X 10.10
Merge branch 'master' of https://github.com/darktable-org/darktable