presets: sort presets by name after writeprotect sorting
Italian translation updated
Merge pull request #620 from bartokk/master

Italian translation updated
scrollbars: save space on my netbook.
dualiso: initial rawspeed black border routing.
dualiso: crop black borders in preview and full
wip: b/w scaling in dual iso module
dualiso: scale/crop floating point buffers, too.
netbook: don't prefetch upon enter darkroom mode, only if using filmstrip.
dng: get black from exif instead of computing it and failing.