New upstream release 0.5
    
    - http://www.reviewboard.org/docs/releasenotes/rbtools/0.5/
    - New Features:
        * API Client
            * A new Python API Client has been introduced for communication with
              the Review Board Web API
        * rbt
            * This is the initial release of our new command line tool, rbt
            * Provides access to useful sub-commands which interact with local
              source code repositories and Review Board
            * Currently considered beta
            * See release notes link for detailed information
    - Bug Fixes
        * Perforce:
            * Fix treating an SVN repository as Perforce by mistake
            * Fix diff generation with unedited files in Perforce
            * Gracefully handle no-match in p4 info regex
        * ClearCase:
            * Support posting review requests in ClearCase snapshot view
        Subversion:
            * Don’t block waiting for user input from svn