Merge pull request #436 from pryds/darktable-1.4.x

Updated Danish translation
shadows&highlights: a more reasonable low approximation limit for color adjustment

this prevents within s&h some of the typical artifacts in highly saturated blues
(black pixels). the original threshold for low approximation was insanely high.
legacy history stacks are processed like with the old value in order to keep results
consistent. you need to reset the module in these cases to take advantage of the improvement.
(cherry picked from commit 2522d40e4350f40ed6ba2df1d7f283e6ac57b1fe)
Update French translation.
(cherry picked from commit 0b2aa1ce45dc038bd31c464d6f993fbcd5cdec19)
[l10n] Swedish update for 1.4.1
Updated Czech translation.
Merge pull request #440 from milankni/darktable-1.4.x

Updated Czech translation.
Italian translation updated for darktable-1.4.x
Update Japanese translation
Merge pull request #444 from bartokk/darktable-1.4.x

Italian translation updated for darktable-1.4.x
[l10n] Update German translation
imageio: disable libraw extension blacklist for 1.4.1

revert after release
Update French translation.
(cherry picked from commit e2474fbd64f4fd791f9b0155636f207c9decd8ed)
Pick an update of map sources from osmgpsmap upstream

We no longer pick all changes since that library turned into a GTK3
library so we can't use the upstream version any longer. This however
looks useful.

(cherry picked from commit 66b4cfcc557c2a98d7ba01177cb0b95583f96cf9)
wb_presets: nikon d5300
(cherry picked from commit 8ae55e9c8576f678b69da3455275f5e7507141c4)
wb_presets: update and expand nikon d5100 (thanks to Steffen Binder)
(cherry picked from commit 90863ad526f2351de1d9b26ed6a3b86c63329cec)
noise profile: nikon 1 v2
(cherry picked from commit 4ed57a0182c55ff46b32869f62d23300d8bc8afd)
noiseprofiles: nikon 1 j3 and aw1 should have the same sensor as the v2
(cherry picked from commit 645cf8f079d5950c6e521428b89415a6441e8b0c)
update pt_BR 1.4.x
Merge pull request #452 from guitorri/darktable-1.4.x

update pt_BR 1.4.x
Fix invalid UTF-8 trimming in "recent collections"
(cherry picked from commit 8766f7254d845a20453df47dcca09a744be3c114)