Transfered Release Process to Brooklyn.io. Several sections updated.
Added menu item for release process.
Revert "Remove hazelcast snapshot dependency"

This reverts commit e46b9aa5a9fe9d380401d2a10b190fdd9f950d25.
Bump hazelcast version to 3.0 (from 3.0-SNAPSHOT)
Resturctued and extended based on feedback from @aledsage.
central -> upstream
snapshot simplified.
custom process for snapshot docs.
Added Deprecation note to `help.txt`.
fix leaking mgmt context, and logging for the cause of it
better concurrency control, fixing very rare but observed once error on DSTask.cancel wrt primaryThread becoming null
better logging during tests, making it easier to see what is going on
added save command for iptables rules;
added custom setup-server command for centos6
added support for insert/append iptables rules to all the available interfaces
added list iptables command
alex's comments addressed
support "login-shell" mode for local processes, and misc ssh/tool tidies
expose methods for extracting connection details from an SshMachineLocation, with tests,
particularly in dealing with private keys (needed e.g. to configure knife, which requires an unpasphrased key file generated)
chef server integration working, based on knife, as well as chef solo and auto-detect
whoops incomplete chef-hosted keys update, and removing dead code and unpermitted actions
(so that the keys as checked in are relatively safe, don't have quite as many permissions at chef-hosted as the one we almost checked in!)
add a way to run commands before invoking knife, needed where rvm is installed
more utilities for time duration and string surrounding
port ranges on localhost skip privileged ports if root is not possible, and a few other misc and related tidies
geoscaling now publishes ROOT_URL, but only when clusters are available, so listening to it instead of other sensors should let callers know when it is safe to do a DNS lookup without causing a failure to be cached; nginx and postgres tidies around the need for sudo (no longer required for nginx)
tidy scanning of classpath entries in catalog, fixing bug where annotations in supplied urls threw silent error and weren't scanned
(includes upgrade to org.reflections library)
tidy log message (from code review)