Update: 17 Jun 2015
— Jeremy Crawford (@JeremyECrawford) June 16, 2015
@DanSingsAndHitsCan you REALLY cast Spiritual Weapon, AND move, AND attack with the Spiritual Weapon, AND a normal weapon in the same turn? You can cast the spell (action), move, and attack with the spiritual weapon again (bonus action).
— Jeremy Crawford (@JeremyECrawford) June 3, 2015