More progress on getting UG Services module tests to pass, adding deleteConnection() and fixing createConnection().
Merge branch 'two-dot-o' of https://github.com/usergrid/usergrid into two-dot-o

Conflicts:
	stack/core/src/main/java/org/apache/usergrid/corepersistence/CpRelationManager.java
Reformatting only.
More progress on connections vs. collections and services tests. 49 of 74 now passing.
check runners if they are registered to coordinator before starting tests
Merge remote-tracking branch 'upstream/two-dot-o' into two-dot-o