Steve's delay_checks plugin

renamed to delay_deny, since that's actually what it does (it doesn't delay processing, it intercepts and defers the denial)
delay_deny: don't die if config setting is missing
added delay_deny.ini
replace concat with push.apply (jsperf 100x faster)
added doc delay_deny.md
delay_deny: noted config file in .md
WS cleanup
delay_deny: removed ./constants (already imported)
delay_deny: fixed incorrectly specified config setting

delay_deny vs delay_deny_pre
delay_deny: doc cleanups, remove superfluous checks
Merge pull request #416 from msimerson/delay_deny

Delay deny