Update to spring 3.2 schemas
Improve controllers

Let spring handle serializing and writing the response body.
Compare apples to apples

Json controller now replies with a Message object
instead of a Map. Creating tons of maps is memory
intensive, plus this tests Jackson's ability to
serialize a bean instead of a Map.
Merge branch 'master' of https://github.com/ryantenney/FrameworkBenchmarks into ryantenney-master