Incremented versions to prepare for next release

Adam is going to change the defaults to 5.6.1
Timothy has moved this to Github and is setting up Travis
Add travis support

Testing ruby 1.8 as well because many people using that for Puppet :(
Add build status to readme
Fix permissions on the tar deploy
Fix PG user bug
Updates to travis config, added sane exclude matrix
Fix lint errors so travis is happy
Upgrade bamboo to 5.6.1

Additionally add a subscribe from the service to the config
file so that the upgrade will trigger a restart of the bamboo
process.
Merge branch 'release_1_6' into production