Implement /recommend. Move from RecommendResponse to generic IDValue. Use Response.Status instead of status codes. Slightly expand RecommendTest
Updates from Kam's review
Merge pull request #41 from srowen/master

Implement /recommend. Move from RecommendResponse to generic IDValue. Us...
Merge branch 'master' into suneel

Conflicts:
	oryx-ml-oryx-serving/src/main/java/com/cloudera/oryx/ml/serving/als/Because.java
Make more realistic model for writing tests
Tomcat 8.0.12
Support /recommend considerKnownItems and expand tests
Merge branch 'master' into suneel
Add JVM memory methods, rename Before/After methods to be less conflicting
Add load test, and change known-items data structure to something more compact
rebase and modified /because with recent changes from /recommend
rebased and modified /because with recent changes from /recommend
Merge branch 'master' into suneel

Conflicts:
	oryx-ml-oryx-serving/src/main/java/com/cloudera/oryx/ml/serving/als/model/ALSServingModel.java
rebased and redone /because based on recent changes from /recommend
rebased and redone /because based on recent changes from /recommend