Fixes bug 2134

Review Request #2441 — Created June 29, 2011 and submitted — Latest diff uploaded

Review Board
Fixes bug 2134

diffs were being created for files where the area surrounding keywords
had changed, and the keywords were not being collapsed.  This was
happening for two reasons:
  * it couldn't understand paths with two leading slashes
  * `svn propget svn:keywords` can return strings with non-space delimiters

Also, I had submitted this previously as a pull request on github - sorry about that.
I couldn't find your policy for contributions, so I just figured that was it.  You might
want to make that a bit more visible.
Using reviewboard 1.5.5 on a Windows 7 server using Apache+mod_wsgi running on python 2.7 with subversion 1.6.15 (if that matters)