remove pre-cambrian redis, add helpers
remove pre-cambrian redis, add helpers

Add some things someone might find useful, but that shouldn't be default:
* after network target
* require postgresql to start nntpchan
* setting `SRND_INI_PATH` if user would like to put their config elsewhere
majestrate/nntpchan,majestrate/nntpchan,chen-chan/nntpchan,majestrate/nntpchan,majestrate/nntpchan,majestrate/nntpchan,majestrate/nntpchan,chen-chan/nntpchan,chen-chan/nntpchan,chen-chan/nntpchan,chen-chan/nntpchan,chen-chan/nntpchan,chen-chan/nntpchan,chen-chan/nntpchan,majestrate/nntpchan