Log Message:
p5-Dancer-Session-Cookie: update to 0.30.

0.30 2018-03-11
  [ ENHANCEMENTS ]
    - add a CONTRIBUTING file [GH#18, Paul Cochrane]
    - minor refactoring, bump minor Perl version to 5.10.0.

  [ STATISTICS ]
    - code churn: 5 files changed, 127 insertions(+), 26 deletions(-)