Add in LDAP group configuration options
https://www.pivotaltracker.com/story/show/73741550
[#73741550]

Add in a property ldap.enabled to the UAA configuration.
This is a clear and concise way to show that we wish to enable LDAP.
Read the correct property value

https://github.com/cloudfoundry/cf-release/issues/459
https://github.com/cloudfoundry/cf-release/issues/458

https://www.pivotaltracker.com/story/show/73741550
[#73741550]
Configure uaa.yml with LDAP attributes

https://www.pivotaltracker.com/story/show/73741550
[#73741550]
Pass in git directory location so that the build can retrieve last commit information
used in the UI
https://www.pivotaltracker.com/story/show/75506514
[#75506514]