REST endpoint for /ready, added method Solver.solveFToD()
Update formal note about contributing from Spark text
I forgot I don't like @author tags
Issue #30 : use Strings for IDs in ALS apps where possible
Add basic REST endpoint testing framework and get injection working with Grizzly
Switch to Jackson for JSON to get tests running
Minor fixes from the last PR feedback, added ExceptionMapper for exception handling, unit tests for REST endpoints