Remove debugging and leftover bits from related_docs function.
Handle unexpected exceptions in related_docs related to schema
oddities described in #98:
* There might not be a row in the RFC table for a given rfc_number of an I-D
* There might be multiple documents published as the same RFC
Don't skip anything when recursing from our equivalents of
get_rfcs_obsoleted and get_rfcs_obsoleted_by.
- Legacy-Id: 521
is still a work in progress. I've been using
draft-ietf-dnsext-dnssec-protocol as a test case; related_docs()
returns the same 137 documents as the cgi code but some of the
relationships are different. Right now, the skip argument is
ignored.
- Legacy-Id: 246
