fix getRobotStanceFrame.  it was unnecessarily changing orientation
fix getRobotStanceFrame.  it was unnecessarily changing orientation

...and doing so incorrectly with a radians/degrees bug.  fixes #1577

patmarion/director,manuelli/director,gizatt/director,mithrandir123/director,openhumanoids/director,RussTedrake/director,mitdrc/director,edowson/director,patmarion/director,RobotLocomotion/director,RussTedrake/director,edowson/director,manuelli/director,RussTedrake/director,gizatt/director,openhumanoids/director,gizatt/director,RobotLocomotion/director,RussTedrake/director,patmarion/director,edowson/director,RobotLocomotion/director,mithrandir123/director,rdeits/director,mithrandir123/director,mithrandir123/director,manuelli/director,openhumanoids/director,edowson/director,edowson/director,empireryan/director,rdeits/director,RobotLocomotion/director,mitdrc/director,empireryan/director,openhumanoids/director,mitdrc/director,RobotLocomotion/director,rdeits/director,mitdrc/director,patmarion/director,manuelli/director,rdeits/director,patmarion/director,rdeits/director,empireryan/director,gizatt/director,openhumanoids/director,empireryan/director,manuelli/director,RussTedrake/director,empireryan/director,mitdrc/director,gizatt/director,mithrandir123/director