!polls, !(multi)poll

Closes #22.
Some tweaks to polling

* Make command formatting more forgiving - allow leaving off the timeout and title, and using other delimeters for options.
* Fix missing "multi" flag.
* Shuffle any poll options with equal votes in random order.
Make mod-only and sub-only commands easier to spot in the list
Minor formatting
Quick error page util
Store login details for special users, and request extra permissions for them
Moar Escaping