Support ranges of revisions in svn2rss.py.
Support ranges of revisions in svn2rss.py.

Patch by: Bhuvaneswaran Arumugam <bhuvan@collab.net>
(Tweaked by me.)

* contrib/hook-scripts/svn2rss.py
  (__init__): Add 'try' block and handle ValueError for revision. Here,
    if the revision is not set, set it to the youngest one. Handle one
    and range of revisions. Finally, for each revision, add the rss feed
    to the file.
  (SVN2RSS.__init__): Keep only max_items items in the feed.

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