A federal judge has handed Taco Bell a victory in a potential class-action lawsuit alleging that the company sent text spam to consumers. U.S. District Court Judge Cormac Carney ruled that Taco Bell wasn't legally responsible for for text messages allegedly sent by the mobile marketing company Ipsh (now part of The Marketing Arm), even if Taco Bell paid for the campaign and knew its details. "Knowledge, approval, and fund administration do not amount to controlling the manner and means of the text message campaign," Carney wrote. The case stemmed from a 2005 campaign promoting new items on the menu -- chicken and steak Nachos Bell Grande. As part of the initiative, owners of 12 Taco Bell franchises in the Chicago area…