Update to 6.0

Upstream changes:
6.0  2015-02-26
  - Code name "Clinking Beer Mugs", this is a major release.
  - Removed name listing support from param method in Mojolicious::Controller.
  - Removed name listing support from param method in Mojo::Parameters.
  - Removed name listing support from error and param methods in
    Mojolicious::Validator::Validation.
  - Removed multi-name support from cookie, param and signed_cookie methods in
    Mojolicious::Controller.
  - Removed multi-name support from param method in
    Mojolicious::Validator::Validation.
  - Removed multi-name support from param method in Mojo::Parameters.
  - Removed multi-name support from cookie and upload methods in Mojo::Message.
  - Removed custom socket support from Mojo::UserAgent.
  - Removed is_fatal, is_level and log methods from Mojo::Log.
  - Removed auto_render method from Mojolicious::Routes.
  - Removed deprecated object-oriented Mojo::Loader API.
  - Removed deprecated accept_interval, lock and unlock attributes from
    Mojo::IOLoop.
  - Removed deprecated accept_interval, lock_file and lock_timeout attributes
    from Mojo::Server::Prefork.
  - Removed deprecated bridge method from Mojolicious::Routes::Route.
  - Removed deprecated is_readable method from Mojo::Reactor.
  - Removed deprecated siblings method from Mojo::DOM.
  - Removed deprecated render_exception and render_not_found methods from
    Mojolicious::Controller.
  - Removed deprecated keep_alive_requests setting from Hypnotoad.
  - Changed return values of all and find methods in
    Mojo::UserAgent::CookieJar.
  - Renamed template attribute in Mojo::Template to unparsed.
  - Renamed extracting attribute in Mojo::UserAgent::CookieJar to collecting.
  - Renamed types attribute in Mojolicious::Types to mapping.
  - Renamed current attribute in Mojolicious::Routes::Match to position.
  - Renamed pattern attribute in Mojolicious::Routes::Route to unparsed.
  - Renamed all_contents, contents, following_siblings, match, next_sibling,
    node, preceding_siblings, previous_sibling and type methods in Mojo::DOM to
    descendant_nodes, child_nodes, following_nodes, matches, next_node, type,
    preceding_nodes, previous_node and tag.
  - Renamed match method in Mojo::DOM::CSS to matches.
  - Renamed extract and inject methods in Mojo::UserAgent::CookieJar to collect
    and prepare.
  - Renamed inject method in Mojo::UserAgent::Proxy to prepare.
  - Renamed params method in Mojo::Parameters to pairs.
  - Renamed match method in Mojolicious::Routes::Match to find.
  - Renamed -A option of prefork command to -a.
  - Added names method to Mojo::Parameters.
  - Added failed and passed methods to Mojolicious::Validator::Validation.
  - Added -I and -M options to prefork command.
  - Fixed Mojo::Template support for parentheses in expressions. (jberger, sri)

5.82  2015-02-22
  - Deprecated Mojo::Reactor::is_readable.
  - Deprecated keep_alive_requests setting in Hypnotoad in favor of requests.
  - Improved Morbo to restart slightly faster.
  - Fixed bug in daemon and prefork commands where --inactivity-timeout option
    was called --inactivity.

5.81  2015-02-20
  - Deprecated object-oriented Mojo::Loader API.
  - Added data_section, file_is_binary, load_class and find_modules functions
    to Mojo::Loader.
  - Improved design of built-in templates.
  - Fixed test command to not let Test::Harness enable global warnings by
    default. (OlegG)

(wen)