fix context to be backwards compat
cleanup
fix query forwarding
fix case with no request params
make query id a bit more readable
Merge pull request #464 from metamx/fix-context

Fix context to be backwards compatible with String values
fix broken unit tests
prepare for next release
[maven-release-plugin] prepare release druid-0.6.83
[maven-release-plugin] prepare for next development iteration
add context serde tests and deprecate backwards compatible methods
fix context on CQE
prepare for next release
[maven-release-plugin] prepare release druid-0.6.84
[maven-release-plugin] prepare for next development iteration