Test commit.
Ensure that errors are returned as JSON and not plain text description.

Change that was made to apigee/usergrid but did not make it into usergrid/usergrid in time for the Apache import.
Fixing tests broken by error handling changes.

Change that was made to apigee/usergrid but did not make it into usergrid/usergrid in time for the Apache import.
See also: https://github.com/apigee/usergrid-stack/pull/257
Reduce repetitive logging in three specific locations that are noisy and repetitive during testing. The first exception of any given type is logged at ERROR level with a stack trace and subsequent instances of the same exception are logged without a stack trace (unless debug is turned on).

Change that was made to apigee/usergrid but did not make it into usergrid/usergrid in time for the Apache import.
See also: https://github.com/apigee/usergrid-stack/pull/257
Make it possible to configure the heap size used by Maven’s forked Java VMs.

“porting” these changes over from the old repo, see also:
https://github.com/apigee/usergrid-stack/pull/262
https://github.com/apigee/usergrid-stack/pull/264
https://github.com/apigee/usergrid-stack/pull/265
Merging from lastest stable changes
Merge remote-tracking branch 'apache/master' into two-dot-o
Id refactor complete events are getting doubly dispatched
Added refactored interfaces into the model
Major refactor.  Using RxJava as the async coordinator

Need to refactor stages to use intermediate observables for network i/o operations.

Need to fix compilation errors in unit tests
Fixed test name
Remove unnecessary import
Cleaned up code and added write unit test
Refactored to use Theories for invalid input testing on all concrete tests
Cleanup of tests and package structure.  Theories working as intended
Added more tests for stages
Added tests for all stages.
Fixes tests and re-configured all input validation
Merge branch 'rxjava' into two-dot-o

Conflicts:
	stack/corepersistence/collection/src/main/java/org/apache/usergrid/persistence/collection/util/EntityUtils.java
Removed invalid cast