STORM-555: Storm json response should set charset to UTF-8.
[STORM-533] Added in client and server IConnection metrics.
STORM-558 change "swap!" to "reset!" to fix assignment-versions always
empty in supervisor
Merge branch 'iconn-metrics' of https://github.com/revans2/incubator-storm into STORM-533
Updated STORM version and added STORM-533 to Changelog.
Merge branch 'STORM-555' of github.com:Parth-Brahmbhatt/incubator-storm
add STORM-555 to changelog
Merge branch 'STORM-558' of github.com:xiaokang/incubator-storm
add STORM-558 to changelog
Revert "Merge branch 'disruptor-update' of https://github.com/miofthena/incubator-storm into STORM-350"

This reverts commit 78c5e231f679c84d14258d190c8658f8d0b98ad3, reversing
changes made to 9ac011129dc90418b9e8210abf0ff8e9f60be656.
remove STORM-350 from changelog