Adjust our download output to correspond to the [version] used in r1298548.
Adjust our download output to correspond to the [version] used in r1298548.

* tools/dist/release.py:
  (clean_dist): remove unused REGEX localvar
  (get_sha1info): optional parameter to replace x.y.z with [version]
  (write_downloads): do the fname replacement

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion