WIP change to passport-cas
add test endpoint for cas1.0 validation
specify serviceUrl
fix ticket validation
all mapped attribute names come back lowercased
fix logout and validation error test
add useSaml option
use stuartf#samlValidate branch of passport-cas
clarify validatePath setting for useSaml
Re-arranged order of CAS configuration options
Suppress CAS useSaml config property
Merge branch 'passport-cas'

* passport-cas:
  Suppress CAS useSaml config property
  Re-arranged order of CAS configuration options
  clarify validatePath setting for useSaml
  use stuartf#samlValidate branch of passport-cas
  add useSaml option
  fix logout and validation error test
  all mapped attribute names come back lowercased
  fix ticket validation
  specify serviceUrl
  add test endpoint for cas1.0 validation
  WIP change to passport-cas