Analysis has shown that this system doesn't actually accomplish
anything. Users do not vote on tags often enough to actually get any tag
removed, so why even bother?

Non-critical database change with this commit

These features only have any value if users actually use them, and
experience has shown that nowhere near enough users use them to make
them worthwhile.

This was an automatic mass-replace. Manual replacement of array(...)
will continue

Fixes #27

Also file permission cleanup

This involves temporarily decrypting all values being searched and
inserting them into a temporary table. Creation of this table can be
very slow when IP history is optionally searched. It might be better to
not make the temp table and just do the IP filtering from PHP.

Fixes #2

Fixes #1

It's what we were using it for anyway

Disables autofill on request format, adds Censored option to Other
category, etc