Build login-server and uaa with gradle
[#74546134] https://www.pivotaltracker.com/story/show/74546134

Remove maven from blobs
Fix pre-packaging scripts
Adjust pre-packaging for latest uaa and login-server
Avoid moving war files unecessarily
Fix GIT_DIR in login server pre-packaging
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.
Fix password encoder classname
Add in ability to pass in external group mappings through the manifest
cf-properties.yml change - make external_groups spiffable
LDAP Properties

Read the correct property value
https://github.com/cloudfoundry/cf-release/issues/459
https://github.com/cloudfoundry/cf-release/issues/458

Configure uaa.yml with LDAP attributes
https://www.pivotaltracker.com/story/show/73741550
[#73741550]
Bump UAA/Login to latest develop version with LDAP support