Aggregate Contribution Custom Search throws MySQL errors if you use commas in the minimum or maximum

If you use a comma to help designate 1000's places in the Aggregate Contribution custom search, CiviCRM 2.1.0 and up (possibly in 2.0 as well) you get a MySQL error because CiviCRM doesn't first filter the field for acceptable characters. This search needs to filter out unacceptable characters (commas, dollar signs, dashes) before dumping them into a SQL statement.