Split out the mysql check. Needs review!
Fix to mysql agent to add current threads
Added options to mysql agent to turn on data collection for things such as replication
Add instance-id awareness to get_hostnames()

 - also move the EC2 "check" to util since it's not really a check at all
workaround for broken json serialization in centos5 (fixes #422)
Fix rabbitmq metrics number
Merge branch 'master' of github.com:DataDog/dd-agent
Disable haproxy events by default
Merge pull request #408 from CaptTofu/master

separated mysql agent