Theory is that the store's buggy site is presenting its
banned-permissions interface because it's detecting a Receiver that
requires SMS_RECEIVE permission even though the permissions themselves
aren't there any more.
Once built for SDK 26 the old GCM support code crashes as it's calling
startService() from background. Duh! Will have to bring in Firebase's
replacement at some point. For now if I'm to release it has to be
without GCM.