up Dancer dependency
code refactoring

Allow  to only define a subset of the actions for a resource.
v0.10

 [BUG FIXES]
 - Requires Dancer v1.3111 or better. (GH#2, reported by OverlordQ)

 [ENHANCEMENTS]
 - 'resource' can now be used with a subset of its actions.

 [STATISTICS]
 - code churn: 4 files changed, 42 insertions(+), 25 deletions(-)