Issue #2501481 by Cottser, davidhernandez, kfriend, alimac, YesCT, lauriii, tim.plunkett, cilefen, lbainbridge, porchlight: form_select_options() is a theme function in disguise and should not use SafeMarkup::set

Issue #687588 by tsphethean, mirie, Cottser, porchlight, cyborg_572, rgoodine, adci_contributor, joshi.rohit100: Remove access check from submit() in UserCancelForm