*There’s tension between the Braxton sisters over Toni Braxton‘s upcoming wedding to Birdman, a new trailer for season six of WE tv’s “Braxton Family Values” has revealed. The clip shows Toni, Tamar, Traci, Towanda, Trina and their mom Evelyn struggling to keep the peace at home after Toni reveals her hip-hop mogul popped the question.  “I have an announcement to make,” she teased her family before [...]