Log Message:
p5-Class-Base: update to 0.09.

0.09 2018-01-04
  [ DOCUMENTATION ]
    - Fix pod typo. (GH#4, knowledgejunkie)

  [ ENHANCEMENTS ]
    - clone method now deep clone.
    - a few minor refactorings.

  [ STATISTICS ]
    - code churn: 9 files changed, 139 insertions(+), 137 deletions(-)