BUG-13784 Fix the value for CREATE_TIME_MILLIS to not duplicate CREATE_TIME_HUMAN
Merge branch 'develop' into feature/amwebapp
Separate a lot of the logic from ContainerStatsBlock into more appropriate locations
Add some javadoc to the interface/impl that gets injected into the webapp
Get a really nice landing page for Accumulo that actually links to the "important" nodes in the cluster.

Need to do the same for HBase but it already has the hooks it appears.
Ensure that the nodes come back non-null before blindly using them.
Fix HBaseProviderService to actually look up the master address and display that on the index page as well.

Required addition of htrace-core once the zk connection was actually running. Denoted the difference
between RPC and HTTP URIs on the index page as well.
Replace current with active
Incorrect assert
Avoid returning null to keep the AM from complaining about it when asserts are enabled.
First stab at some unit tests for some of the new AM webapp.