Log Message:
Update to 1.3117

Upstream changes:
1.3117 31.07.2013

    [ ENHANCEMENTS ]
    * GH #836: Provide more information when an engine fails to load.
        (Yanick Champoux, reported by Daniel Perrett)

    [ BUG FIXES ]
    * GH #794: Upload data was not kept for forwarded requests.
        (reported by William Wolf)
    * GH #898: calling halt() doesn't discard set headers anymore.
        (Yanick Champoux, reported by Nicolas Franck)
    * GH #842: embedded 'prefix' now properly localized.
        (Yanick Champoux, reported by Jashank Jeremy)

    [ DOCUMENTATION ]
    * GH #938: fix doc typos in Dancer::Serializer. (Fabrice Gabolde)
    * GH #712: add all status codes known to Dancer to Dancer::HTTP.
        (Yanick Champoux, reported by Brian J Miller)
    * Add warning that 'forward' doesn't preserver the session. (Alberto Sim玫es)
    * GH #941: minor correction to code snippets in documentation.
        (Grzegorz Ro偶niecki)
    * GH #929: add warning on the use of Corona as underlying web server.
        (issue reported by berekuk)
    * GH #943: remove mention to 'Dancer::Plugin::Validation',
        clean 'dancer -a' sample output. (Grzegorz Ro偶niecki)