LP#1468422 Port user update to cstore

LP#1468422 Port user update to cstore

Migrate the user update code from open-ils.storage to open-ils.cstore.
This has several benefits:

1. We can re-use the patron password update code
2. Several actions (bad contacts, invalid address) which previously
   resulted in data modifications outside the main transaction now
   take place with the main patron update transaction.
3. Bigger, better, faster, stronger.

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Dan Wells <dbw2@calvin.edu>