Updated WB presets for Canon EOS 550D
Added all finetuning steps. Firmware Version 1.0.9
Merge pull request #149 from LebedevRI/canoneos550d-wb-presets-update

Updated WB presets for Canon EOS 550D
Read ISO from EXIF differently (similar to inside exiv2's "fixiso" setting), and hope this will be the correct way now (works for d5100 at least, please check that other ISO readouts are not broken now!)
Be a bit more regression safe:
handle standard ISO tags the same as before (however not sure if that was really correct?), and non-standard ones in the way exiv2's fixiso does
noise profile: some work on the wavelet code.

please still don't use it in production, i reserve the right to change this..
doesn't quite all add up yet, but results are decent again.

more rigorous evalution still to do.
gen-profile: Fix "Check for images export (...)" message
preferences dialog: adapted tool-tip for grayed out options
noise profile: pentax k-r by Enrico Hillmann
noise profile: forgot contributor name.
highlights: make it a tad faster (sse/openmp tweaks)
noise profile: Nikon D200
gen-profile: Use add_to_list() function to fill ISO settings list
gen-profile: Bugfix: check that darktable-cli & gnuplot are installed
gen-profile: Bugfix: Don't ignore ISO settings from command line args
thumbnails: use the downsampled input buffer rather than the full one.

makes processing much faster, but quality can suffer for
extreme crops (input buffer will be downscaled based on original
size, not cropped size).
thumbnails: make last commit optional, default to high-quality.

(except for weak systems, where i switch it on by default)

it's not exposed in the gui, as the option is read in two different places
which have to match (or else we die). so it could be cached in darktable.something
instead, to ensure it's only read at startup.
Update swedish
Merge pull request #151 from levitte/swedish-translation

Update swedish
conf: use hashtable instead of O(n) search
Merge pull request #150 from bluesceada/nikon-d200-noiseprofile

noise profile: Nikon D200