Hadoop 2.3 - CM API dev
   * Added 2 API calls - cluster_exists? & host_exists? to aid in implementation Idempotentancy.
   * Added a new script in unittests called create_cluster.rb so I can exercise
     Hadoop cluster deployment before actually binding it to barclamp execution.
   * Added a to_array method to the ApiCluster object.
   * Refactored ApiBaseObject.setattr(k,v) and ApiBaseObject.getattr(k) methods in types.rb.
Merge remote-tracking branch 'crowbar/release/fred/master' into release/fred/master
* Restored the copy of _edit_attributes.html.haml from my local backup directory.
  Mysteriously reverted to a previous version with no license key field (branch merging artifact?)
Merge pull request #100 from Paul-Webster/pull-req-release-fred-master-b316ba0ec60b6795d6d97f2f8eb285a42c89aa86

Hadoop 2.3 dev [1/1]