Added a playback mechanism -- also discovered that sensor logging is broken so I'm disabling it by default
Added a playback mechanism -- also discovered that sensor logging is broken so I'm disabling it by default

krishauser/Klampt,YilunZhou/Klampt,YilunZhou/Klampt,krishauser/Klampt,YilunZhou/Klampt,hpbader42/Klampt,krishauser/Klampt,hpbader42/Klampt,hpbader42/Klampt,hpbader42/Klampt,krishauser/Klampt,hpbader42/Klampt,krishauser/Klampt,YilunZhou/Klampt,krishauser/Klampt