Add module to publish metrics to Coda Hale Metrics
Update docs to link between the modules for Coda Hale/Yammer Metrics
version 2 and 3.
deploying on tomcat, SLF4J complains about a missing implementation
BugFix: Timeout does not propagate request context

https://github.com/Netflix/Hystrix/issues/212
BugFix: Plugin WrapCallable of RequestContext in Timeout
Merge pull request #213 from benjchristensen/issue-212

BugFix: Timeout does not propagate request context
Merge pull request #204 from ahus1/ahus1-slf4jimpl

deploying hystrix dashboard on tomcat, SLF4J complains about a missing implementation
Merge pull request #199 from fkjellberg/codahale-metrics

Add new module for publishing metrics to Coda Hale Metrics version 3