Bump src/loggregator

Bump :
  Alex Jackson:
     disable old yeti tests until new CAT test is ready
     Attempt to make tests more stable by checking the state of the channel when receiving
  Jared Carroll:
     Dont reset websocket keep alive timer when loggregator receives a message from producers
     Fix a few concurrency bugs found during airpair interview

Signed-off-by: Alex Jackson <ajackson@pivotallabs.com>
allow configuration of saml and ldap properties for the saml_login server in cf-release starting with saml_login 1.3.0
add SSL properties to the spec file
enable ability to import LDAP certificate, as well as specify it in the cf-properties.yml file as saml_login.ldap.sslCertificate