IPS unit test checking code and message on errors
Working on Hub Proxy
Minor fixes to the ips unit tests
Comments in the hub.mock.js
WIP - promise stubs for ips retrieveSequenceNode.  Mainly done so I can merge with Young-Suk's branch.
commenting out WIP code
minor changes
working on integrationt test
sequenceNodeProvider takes an object now instead of a string.
ips.js calls sequencenodeprovider with basic unit tests.
controller returns success response (with code, status, etc…) as designed in API doc.
Working on Nocks for interaction and submission
IPS local unit test completed
Integration test (interaction) partially working