Adding more Thai translation
501 translated messages, 2 fuzzy translations, 1067 untranslated messages.
Merge pull request #240 from tawtao/th-trans-1.2.x

Adding more Thai translation
noise profile: panasonic gh-2 by thouks
(cherry picked from commit e03d69d4dfc8f01d2e14c69035701629481ac2e9)
noise profile: updated panasonic dmc-fz18 by sergey
(cherry picked from commit d9e43463827290d734db7b7f7adb29cb87611dfd)
noise profile: nikon d5200 by timur
(cherry picked from commit b1bd02f1a808dd9fa3f964f0860dc9518ac0da5b)
fix a minor memory leak in tags
(cherry picked from commit a5b9bafca2cec786a0fa9bce30328090d99e3582)
Hopefully fix a deadlock while shooting tethered

Credits for the fix go to Jo :)
(cherry picked from commit 88691524cf2bba2aa2a788d4ab3e2b23fe516fb2)
wb_presets: Copy Samsung NX5/NX10/NX11 from NX100
(cherry picked from commit 7c0afce9f8da197f41702e160fbde834ed672d3a)
(cherry picked from commit 9b3d091a80c27501e13a7d512fc27565a0986805)
cleanup: removed dead code.
(cherry picked from commit aeb5e455dbc434084ea0bb4a32cf077d64bd4ac6)
ratings: press 1 to toggle 1 star (avoids moving right hand from mouse to 0)
(cherry picked from commit f48273f214a8268230f177e30b1410d85d7b95bb)
Update release notes.
update of dutch translations
gettext: fix but that was resetting purple color label collections in non-english language.
(cherry picked from commit bf8f52eec987d9463202d7daff72b781a4e15cb3)