Only pull in ncurses if the system curses doesn't supply wsyncup.
Update to 0.21

Upstream changes:
1.21 2013-03-03T12:33:49

    - Added Net::EmptyPort::wait_port()
      (tokuhirom)

1.20 2013-03-02T18:30:25

    - bump up version

1.19 2013-02-27T14:02:13

    - Split empty_port() function to Net::EmptyPort
      (Thomas Klausner)
Updated net/p5-Test-TCP to 0.21
note upstream RT ticket url.
Update to 1.302

Upstream changes:
1.302 Fri Mar 1 2013
        [ENHANCEMENTS]
        - Git::Repository::Plugin::Log is now able to parse commits
          with completely empty log messages
        - Git::Repository::Plugin::Log is now able to parse commits
          containing multiline headers (like gpgsig and mergetag)

1.301 Mon Jan 21 2013
        [DEPRECATION]
        - the following Git::Repository methods are obsolete,
          and will die when called: create, wc_path, repo_path
        - the following parameters to Git::Repository->new are obsolete,
          and will cause the constructor to die: repository, working_copy
        [PACKAGING]
        - switch to Dist::Zilla for maintaining the distribution

1.300 Mon Jan  7 2013
        [ENHANCEMENTS]
        - fixed support for overloaded objects (e.g. Path::Class objects)
          in Git::Repository::Command (RT #82373)
        - fixed Git::Repository::Log::Iterator to work with older gits
          when disabling colored output (thanks to Dominic Humphries)
        - fixed some cases where Git::Repository::Command and Git::Repository
          new() methods ignored some of their parameters. They now die when
          passed ambiguous or unexpected parameters.
          (follow-up of RT #82373, thanks to Michael G. Schwern)

1.29 Tue Dec 4 2012
        [ENHANCEMENTS]
        - added support for callbacks in run()
        [DOCUMENTATION]
        - minor documentation improvements

1.28 Sun Nov  4 2012
        [ENHANCEMENTS]
        - disabled colored output from logs in Git::Repository::Log::Iterator
        - wc_path() and repo_path() accessors are deprecated and now warn
        - improved the inter-documentation links by liberal use of L<>
        [TESTS]
        - ignore commit hooks that may be included with templates (RT #80593)
        - test for quiet won't fail if no identity is defined (RT #80321)
Updated devel/p5-Git-Repository to 1.302