Add key accel to import folders

I added a default of ctrl-shift-i, however that doesn't work on my
system. Probably there is some global window manager shortcut in the
way, so YMMV.
(cherry picked from commit c8822f9decddb91a704d127a6b3b222ba592143d)
Correctly specify the version of presets

When bumping the version of colorzones the presets we ship were
(half) forgotten.
(cherry picked from commit b2fd30b7b9728a3806c802afc2d3e1a36145c825)
wb_presets: update to ufraw-cvs
(cherry picked from commit 1ea291c2b59ffdeea370154dd4c9d99c191de134)
(cherry picked from commit 6087174bb92697409b2bd756aca6f1038296a335)