Update to 4.42

Upstream changes:
4.42  2013-09-30
  - Added EXPERIMENTAL form validation support.
  - Added EXPERIMENTAL modules Mojolicious::Validator and
    Mojolicious::Validator::Validation.
  - Added EXPERIMENTAL validation method to Mojolicious::Controller.
  - Added EXPERIMENTAL validator attribute to Mojolicious.
  - Added EXPERIMENTAL label_for and validation helpers to
    Mojolicious::Plugin::DefaultHelpers.

4.41  2013-09-22
  - Improved documentation browser to be a little more RESTful.
  - Fixed flatten to work with older versions of Perl. (jamadam)

4.40  2013-09-21
  - Added text method to Mojo::Message.
  - Added siblings method to Mojo::DOM.
  - Added flatten method to Mojo::Collection.
  - Improved documentation browser with source links.
  - Fixed smart whitespace trimming bug in Mojo::DOM.
  - Fixed table parsing bug in Mojo::DOM::HTML.
  - Fixed bug in Mojolicious::Types where the txt MIME type did not specify a
    charset.

4.39  2013-09-17
  - Improved HTML5.1 compliance of Mojo::DOM::HTML.

4.38  2013-09-16
  - Added is_binary method to Mojo::Loader.
  - Fixed support for binary files in inflate command.
  - Fixed stylesheet helper not to enforce a media attribute.


(wen)