* implement SourceVer() in pkgRecords

* implement SourceVer() in pkgRecords
   (thanks to Daniel Burrows for the patch!)
* merged from Christian Perrier:
  * mr.po: New Marathi translation  Closes: #416806
  * zh_CN.po: Updated by Eric Pareja  Closes: #416822
  * tl.po: Updated by Eric Pareja   Closes: #416638
  * gl.po: Updated by Jacobo Tarrio
           Closes: #412828
  * da.po: Updated by Claus Hindsgaul
           Closes: #409483
  * fr.po: Remove a non-breakable space for usability
           issues. Closes: #408877
  * ru.po: Updated Russian translation. Closes: #405476
  * *.po: Unfuzzy after upstream typo corrections

* NMU
* Fix broken use of awk in apt-key that caused removal of the wrong keys
  from the keyring. Closes: #412572