Merge pull request #33 from ravihansa3000/feature-agent-extension

Feature agent extension - clustering support
Clustering enable disable option. Moved registry configs to separate databases
Removed quotes from clustering parameter
Adding create table scripts to mysql.sql script
adding gateway and keymanager hostanmefor apim store and publisher
adding update cartirdge definition
fixing lb port mapping handling issue
fixes to esb puppet module to correctly configure port mapping related params
fixing a missing brace
setting lb IPs in the standalone LB mode, via puppet
setting lb private ip and public ip via puppet