Reflex.Time.delay does not retain ordering

[lspitzner]

The current implementation of delay does not ensure that order of events is preserved through delay, due to race-condition when the delayed events fire (which thread gets the lock first).

I don't think this necessarily needs to be fixed, as fixing it seems to make the implementation much more complex. But it should at least be pointed out in the haddocks and the quickref.

[lspitzner]

Combining gateThrottle from #184 and the current delay gives you a fixed delay, I think.

[dfordivam]

I think there is no action item here, as the behavior is not a bug. So closing the issue.