LOS ANGELES (AP) - Thousands of protesters are angry about California's ban on gay marriage - and so are the stars. Many celebrities grieved the passing of Proposition 8 in California this week. Some - such as Wanda Sykes, Rose McGowen and Lance Bass - attended a Wednesday protest criticizing the state's gay marriage ban. Others - like Ellen DeGeneres, Rosie O'Donnell, Samantha Ronson and Melissa Etheridge - vented their frustrations online, on TV, and onstage. Blocks away from the Thursday rally of more than 2,000 gay-rights advocates outside the gates of a Mormon temple, several stars - including James...