change datetime format used in lcm logger filename to avoid ":" characters
change datetime format used in lcm logger filename to avoid ":" characters

the iso format uses ":" as separators which can break scp commands.

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