Refactored CDN headers and test classes
Better explanation of Beta APIs
Added ObjectApi.list() and ContainerApi.head() methods/tests
Fixes checkstyle violations in neutron.
Fixes more checkstyle violations.

Conflicts not merged from master.
Conflicts:
	rackspace-cloudbigdata/src/main/java/org/jclouds/rackspace/cloudbigdata/v1/CloudBigDataApiMetadata.java
	rackspace-cloudbigdata/src/main/java/org/jclouds/rackspace/cloudbigdata/v1/domain/Cluster.java
	rackspace-cloudbigdata/src/main/java/org/jclouds/rackspace/cloudbigdata/v1/domain/CreateCluster.java
	rackspace-cloudbigdata/src/main/java/org/jclouds/rackspace/cloudbigdata/v1/domain/CreateProfile.java
	rackspace-cloudbigdata/src/main/java/org/jclouds/rackspace/cloudbigdata/v1/domain/Profile.java
	rackspace-cloudbigdata/src/test/java/org/jclouds/rackspace/cloudbigdata/v1/features/ClusterApiLiveTest.java
	rackspace-cloudbigdata/src/test/java/org/jclouds/rackspace/cloudbigdata/v1/features/ClusterApiMockTest.java
	rackspace-cloudbigdata/src/test/java/org/jclouds/rackspace/cloudbigdata/v1/features/ProfileApiLiveTest.java
	rackspace-cloudbigdata/src/test/java/org/jclouds/rackspace/cloudbigdata/v1/features/ProfileApiMockTest.java
Missing 1.7.x checkstyle fixes