purged audit_content table from model.
dropped root-atom and blob arguments from wrap(Audit)Atom method signatures.
fixed method reference in docblock.
converted Audit_Event::wrapAtom() into a pure wrapper around Ilios_Model_AuditUtils::wrapAuditAtom()
fixed method reference in docblock.
adjusted the db insertion of audit atoms in saveAuditEvent() according to related schema changes.
renamed Audit_Event class to Audit_Atom. renamed model object var from $auditEvent to $auditAtom, everywhere.