Fix email reminder spec
Fix email reminder spec

Fixes an email reminder spec that was occasionally failing. The
spec was comparing arrays with '==' instead of asserting that
array included the wanted values.

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