Merge pull request #12 from amanhigh/master

Decreased default timeout of Hysterix TaskHandlers to 1 sec from 10 sec.
Added host name to command and threadpool metrics
Reporting only those host names where circuit breaker is open
Externalized dashboard thread configs
Reduced acceptor threads to 2 to accommodate smaller CPU machines
Snapshot release version
Updates for 1.2.8 snapshot release
minor edit
minor edit
added clojars to repositories section
Added Open Circuit Host names to cluster dashboard UI.