Hadoop 2.3 dev - CM API
* Refactored resource.rb and removed the invoke method [code simplification].
  Coded get, put, post and delete in-line for each resource.rb method call.
* Corrected parameter passing for the update_license API call.
* Added update_license unit test to the API test harness.
Merge pull request #93 from Paul-Webster/pull-req-release-fred-master-9ae2f55e88a60676df3749d08a8164b93bfd0d69

Hadoop 2.3 dev - CM API [1/1]