Update to UAA 3.2.0

This release updates the UAA version to 3.2.0

New Features

• Configure CA Cert value for UAA
• Implement Session Cookie Config

New spec properties:

 uaa.servlet.session-cookie:
    description: |
      Optional configuration of the UAA session cookie.
      Defaults are the following key value pairs:
        secure: <(boolean)this value if set, otherwise require_https>
        http-only: <(boolean) - default to true. set HttpOnly flag on cookie.
        max-age: <(int) lifetime in seconds of cookie - default to 30 minutes)
        name: <(String) name of cookie, default is JSESSIONID>
        comment: <(String) optional comment in cookie>
        path: <(String) path for cookie, default is />
        domain: <(String) domain for cookie, default is incoming request 

Bug Fixes

• Bosh Canary Deployment of UAA leads to 404 route not registered errors
• Add a script which the route registrar can run as part of its health check
• Ensure that UAA Tomcat/Java Process goes away during stop
• Add timeout to uaa-release health check
• User prompted for endpoint when UAA is being updated
• Graceful handling of startup error should be supported.