Feature/jl/mie 710

https://ngjira.nationalgeographic.com/browse/MIE-710

NEW: Lift/lower Sails server within test
NEW: Mock Neo4j responses using Nock and fake response from view

REQUIRES >>>>
- Running `npm install` to install Nock dependency (may need to be `sudo npm install` if first command fails)

TESTING >>>>>
- Stop Neo4j server (launchctl stop org.neo4j.server -OR- neo4j stop)
- Position yourself in ~/code/activitystreanms
- Run `grunt test`  All tests should complete successfully
- Start Neo4j server (launchctl start org.neo4j.server -OR- neo4j start)
- Position yourself in ~/code/activitystreams
- Run 'grunt test'  All tests should complete successfully

KNOWN ISSUES >>>>>
There is still some work that needs to be done with testing, such as testing that the view response returns the expected data.  Right now, tests only look for a 200 response.  We can also look into refactoring the code implemented in the views so that tests can send the view the expected mocked data to return, and then test that the data comes back.  We can address this in another ticket.