Update to 1.3100

Upstream changes:
1.3100      25.08.2012

    [ BUG FIXES ]
    * GH #816: Improve wording when failed to load engine. (Sawyer X)
    * GH #817: Fix CODE reference uncloned using Clone::clone.
      (David Previous, Sawyer X)

    [ ENHANCEMENTS ]
    * GH #755: HTTP::Headers accepted by dancer_response. (Roberto Patriarca)

    [ DOCUMENTATION ]
    * GH #818: Use "MyWeb::App" instead of "mywebapp" in examples. (pdl)

1.3099      11.08.2012

    [ BUG FIXES ]
    * GH #683: Fix uninitialized warnings. (Sawyer X)
    * GH #700: Take into account the app name in route caching. (Perlover)
    * GH #775: Clone variables for templates.
      (Reported by Wanradt Koell, fixed by David Precious, Sawyer X)
    * GH #776: get should be default to get/head even it's inside any.
      (Fayland Lam)
    * GH #788: Make sure ID key in sessions are clobbered. (kocoureasy)
    * Fix uninitialized variables in config file path. (Sawyer X)
    * GH #809: Require all necessarily modules in Dancer::Config.
      (John Wittkoski)

    [ ENHANCEMENTS ]
    * GH #799: New test function: response_redirect_location_is. (Martin Schut)
    * send_file now accepts an IO::Scalar. (David Precious)
    * Clean up $VERSION. (Damien Krotkine)

    [ DOCUMENTATION ]
    * GH #784: Synopsis fix in Dancer::Error. (Alex C)
    * Document session_domain in Dancer::Config. (David Precious)
    * Pod fixes in abstract session. (David Precious)
    * Synopsis fix in Dancer::Test. (Stefan Hornburg <Racke>)

1.3098      28.07.2012

    [ ENHANCEMENTS ]
    * New keyword 'plugin_args' exported by Dancer::Plugin to provide
      a consistent way with Dancer 2 to obtain arguments from a plugin
      keyword. (Alberto Sim.es).
    * Add 'execute_hook' and deprecate 'execute_hooks' for homogeneity
      with Dancer 2.
    * send_file will do the right thing if given an IO::Scalar object
      (David Precious, prompted by Ilya Chesnokov).

    [ DOCUMENTATION ]
    * Fix escaping on some docs (Stefan Hornburg @racke).

(wen)