asynch servlet for query forwarding
remove jetty examples
cleanup
remove unneeded comment
more sensible defaults for single core machines
fix code review comments
create utiliy class for getMaxDirectMemory
fix documentation link
Merge pull request #455 from metamx/async

Asynchronous servlet for query forwarding
Merge pull request #457 from metamx/stream-cache

Populate cache without materializing results first
Merge pull request #456 from metamx/processing-threads-default

more sensible defaults
prepare for next release
[maven-release-plugin] prepare release druid-0.6.77
[maven-release-plugin] prepare for next development iteration
fix jetty default thread pool size for jetty 9 and prepare for next release
[maven-release-plugin] prepare release druid-0.6.78
[maven-release-plugin] prepare for next development iteration
learn to math and prepare for next release
[maven-release-plugin] prepare release druid-0.6.79
[maven-release-plugin] prepare for next development iteration