Configure email not to be in spam
Move distance constants to user model
Merge branch 'iba_83_configure_email_not_to_be_in_spam' into staging

* iba_83_configure_email_not_to_be_in_spam:
  Configure email not to be in spam
Merge branch 'accurate_radius_distance' into staging

* accurate_radius_distance:
  Move distance constants to user model