Log Message:
Update to 0.47

Upstream changes:
0.47      2013-12-14 19:06:59Z
  - update configure_requires checking in Makefile.PL, add CONTRIBUTING file

0.46      2013-10-02 00:40:37Z
  - re-release with fixed compile test

0.45      2013-09-12 03:06:25Z
  - removed use of deprecated Class::MOP::load_class
  - documentation reference added, pointing to the WARNING section in
    MooseX::Declare, regarding future utility of this module
  - repository migrated to the github moose organization