no file paths -> no branch fix

changesets with no file paths did not get branch assigned - import broken and could not continue.
FIX: if no file paths, assign trunk branch
Add missing strings
Bump version
SVN fixes (pull request #97)
Fix #66: bitbucket.org integration
Modify copyright
Added BitBucket.org integration (pull request #98)
README: add bitbucket support (#99)
Update russian translation
Merge remote-tracking branch 'mantis/master'
Added german translation file and updated english translation file