SAMLLogout
Achieves SAML SLO, single logout.
Properties
Example Configuration
{
    "alias" : "slo",
    "name" : "SAMLLogout",
    "configuration" : {
      "pipeID" : "pipeSLO",
      "template" : "autopost"
    },
    "id" : "slo"
  }
  Requirements
- The incoming request contains a valid SAMLRequest
 - The incoming request is HTTP POST