Changed the order of hive and mapred roles for bcpc-vm2
Cookbook to deploy jmxtrans on nodes and collect JMX stats on Graphite DB
Added code to create roles using ruby (*.rb) files.
Fixed ruby role issue that was causing build failure due to ruby roles not found
Fixed escaping $ sign
Additions/Modifications for Kafka installation

New roles and Cookbook for Kafka
Fixed version numbers
Fixed role names to include Head word
Merge branch 'hadoop_hortonworks' of https://github.com/bijugs/chef-bcpc into hadoop_hortonworks