Modification from RAW3-1
No need for the stds, thrash from the voltage checks on robot-at-work
Merge pull request #74 from thiagodefreitas/raw_voltage

Modification from RAW3-1
cob_base_velocity_smoother: add param to specify minimal rate which is expected for commands. At slower rates, start filling in zeros
cob_undercarriage_ctrl: expose param for watchdog timeout
Merge pull request #77 from ipa-mig/groovy_dev

allow parameterization of timeout for undercarriage_ctrl and velcoity_smoother