o this is a minor step towards getting canonical email addresses to work, and not via a gross hack (the script with a gross hack is in use in a production environment, so ...)

Anyways, this address the findUser() sub and email transforms of none, base domain, and name only.  base_domain is not properly implemented yet.  an email transform of none does an exact match on email addresses in the profiles table.  A name only transform does a regular expression match (via mysql's RLIKE operator) on the name portion of the address (i.e., seth from seth@job.cs.brandeis.edu).  This is sloppy, but useful in an environment where there are only a few users.

the base_domain is next, probably tomorrow.  I need to figure out how to implement it first.