Bobbi Kristina — Browns and Houstons Gather For Bittersweet 22nd B-Day

Bobby Brown was the one given a gift on Bobbi Kristina’s 22nd birthday … he was allowed to gather both sides of the family together to celebrate her special day.

Sources accurate to the family say Bobby and his wife, Alicia Etheredge, were allowed to invite several members of the Brown family to join them, along with the Houstons — who’ve been at the hospital every day —…