Apply fix to diff code as per http://www.mathertel.de/Diff/DiffTest.a…

…spx?oldfile=Diff.cs.v1&newfile=Diff.cs.v2

new revision for dev build

new revision for release version

import translation work from https://crowdin.com/project/ublock

new release (for the benefit of Firefox users)

new revision

new revision for stable release

amo mistake: forgot to select "On this site" re. hosting...

new revision for stable release

new revision for stable release