Merge pull request #336 from MRIG/master

Updated Dutch translation
path masks: improved dynamic buffer management - should avoid crashes due to buffer overflow
Merge branch 'master' of ssh://github.com/darktable-org/darktable
[l10n] allow translation of preference enums
Update french translation.
basecurve: measured preset for nikon d90.

filtered by exif data, only users of that camera will see the preset.
noise profile: pentax *ist dl by simon harhues
[l10n] Swedish update of the "new" preferences strings
update dutch translation