Add spec for automatic logout after specified time period
Add spec for automatic logout after specified time period

oskarpearson/e-petitions,StatesOfJersey/e-petitions,alphagov/e-petitions,unboxed/e-petitions,joelanman/e-petitions,oskarpearson/e-petitions,unboxed/e-petitions,StatesOfJersey/e-petitions,joelanman/e-petitions,oskarpearson/e-petitions,unboxed/e-petitions,StatesOfJersey/e-petitions,alphagov/e-petitions,unboxed/e-petitions,alphagov/e-petitions,alphagov/e-petitions,joelanman/e-petitions,StatesOfJersey/e-petitions