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Runnymede signers must live, work, or study within the borough

This re-implements 1095be2427e7772a0b90b08dcdf003baf7b56509 for Runnymede petitions
site to run in compliance with the council's petitions schema (this was overridden
as a courtesy to the creator of a specific petition, now closed, since the original
deployment did not comply with the council's schema).
break live/work/study onto new line in Runnymede

(avoids wrap, requested by council)
Fix failed domain non-retrying.

If a domain resolution ends in STATE_BAD (e.g. a SERVFAIL), the code
never retries that domain's resolution again, though it clearly means
to. It marks the domain as bad and says "holding off", but when the
bad domain marker times out, it simply gets again the old resolution
result and repeats marking the domain as bad.

This change removes the domain resolution result when the domain is
marked as bad, so that once the bad domain marker times out, there is
no existing result and a new domain resolution is started.