RoxAnne L. Rochester wasn’t going to let cancer stop her from saying what she needed to say. As President Barack Obama prepared to mark the 50th anniversary of the Civil Rights Act, Rochester e-mailed friend Eugena A. Whitson-Owen on April 8 and told her that, a half-century later, it was still important for female attorneys to close the gender pay gap at law firms. It’s a message Whitson-Owen won’t be deleting any time soon. “Even when she was fighting cancer, her spirit — her loving …