Update code to work with Fedora 19 (Ruby 2.0)

Relax rake and mocha gem version dependencies
Cartridges:
  - Update v2 cartridges to match F19 versions of software
  - Added MariaDB cartridge
  - Added support for Apache 2.4
Updated tests:
  - Use v2 cartridges
  - Update to match F19 versions of software
  - Use cucumber rerun formatter (moved cucumber steps back from ruby files to feature files)
  - Remove support for F18
Bug fixes:
  - Fixed broker log file permissions and labels
  - Fixed broken test cases