use the signed in user's id, not the one passed from the view params
account editing was hiding in the device controller all along!
only validate uniqueness if the user is not signed in. obvs!
that was a trip! got validations to work properly for all object states!
make a unique index on sip_username since we will be searching on it a lot
redirect after edited user
add link to "my account" when logged in
Rails delete method fails consistantly. Disabling.