CP core has been renamed common.
Fix sorting problem and other things in the new CpEntityManager and CpRelationManager implementations.
CpEntityManager.update() now works, and so does test CollectionIT.userFirstNameSearch().
15 of 36 CollectionIT tests now passing with Core Persistence. w00t!
Caching of CP managers gets me to 18 of 36 tests passing in CollectionIT.
21 of 36 CollectionIT tests passing.
Merge branch 'entity-manager' of https://github.com/usergrid/usergrid into map-module

# By Dave Johnson
# Via Dave Johnson
* 'entity-manager' of https://github.com/usergrid/usergrid:
  21 of 36 CollectionIT tests passing.
  Caching of CP managers gets me to 18 of 36 tests passing in CollectionIT.
  15 of 36 CollectionIT tests now passing with Core Persistence. w00t!
  CpEntityManager.update() now works, and so does test CollectionIT.userFirstNameSearch().
  Fix sorting problem and other things in the new CpEntityManager and CpRelationManager implementations.
  CP core has been renamed common.

Conflicts:
	stack/core/src/main/java/org/apache/usergrid/corepersistence/CpEntityManager.java