Update to 0.12

Upstream changes:
0.12      2014-04-07 22:42:12 Europe/Amsterdam

    [ ENHANCEMENTS ]
    * GH#518: Bump jQuery to 1.10.2 (Grzegorz Ro偶niecki).
    * GH#535: Support OPTIONS and PATCH requests in Server::Standalone.
      (Russell Jenkins)
    * GH#553: Dancer2 CLI: specify directory to write app skeleton
      (Jean Stebens)
    * GH#543: Additional HTTP Methods for Ajax plugin (Jean Stebens).

    [ DOCUMENTATION ]
    * RT#91428: POD encoding set to UTF-8 in main .pm (Gregor Herrmann).
    * GH#517: Miscellaneous documentation fixes (Cesare Gargano).
    * GH#518: "Getting started" demo page fixes (Grzegorz Ro偶niecki).
    * GH#522: s/PerlHandler/PerlResponseHandler/ in Apache2 sample configuration
      (Grzegorz Ro偶niecki)
    * GH#521: Remove duplicated POD and clean up list details (Shlomi Fish)
    * GH#526: Cleanup POD formating and code snippets in manual.
      (Grzegorz Ro偶niecki)

    [ BUG FIXES ]
    * GH#528,529: Force PSGI server in dispatch scripts for CGI or fcgi
      deployments (Erik Smit, Alberto Sim玫es)
    * GH#550,GH#551: Update all headers in Handler::File
      (Sawyer X, Stefan @racke Hornburg)
    * GH#540: Fix hook execution when default scalar was used in hook code.
      (baynes, Russell Jenkins)
    * GH#552: Rework test suite to use Plack::Test
      (Sawyer X, Stefan @racke Hornburg)
    * GH#560: Return value of hooks do not alter response content.
      (Jean Stebens)

(wen)