Add retry logic to awscluster's NodeRegistry script.
Make Tomcat threads configurable (in REST tests).
Fix PagingEntriesTest by adding better ES index refresh logic.
Fix to ES refresh index logic fixes one of the MUUserResourceIT tests (USERGRID-209).
Clean up some Tomcat dependencies, also fix formatting in web.xml.
Fix to ES index refresh logic.
Better settings for running Core, Services and REST tests in two-dot-o branch.