Switched cd to push/pops.
Switched cd to push/pops.

dacastro12/NTRT_Update,MRNAS/NTRT,NASA-Tensegrity-Robotics-Toolkit/NTRTsim,MRNAS/NTRT,NASA-Tensegrity-Robotics-Toolkit/NTRTsim,MRNAS/NTRT,NASA-Tensegrity-Robotics-Toolkit/NTRTsim,MRNAS/NTRT,dacastro12/NTRT_Update,dacastro12/NTRT_Update,NASA-Tensegrity-Robotics-Toolkit/NTRTsim,MRNAS/NTRT,MRNAS/NTRT,dacastro12/NTRT_Update,dacastro12/NTRT_Update,NASA-Tensegrity-Robotics-Toolkit/NTRTsim