Updating package from local PAL package

- Meshes were updated (bigger hands).
- Some preparation for point_head_action was added.
- Fix warnings (cfmDamping -> implicitSpringDamper) when
  launching model in Gazebo.
- Fix copyright 2014 notes.
- Fix hands mimic joint multiplier for underactuated joints for
  correct transmission.
- Updated footprint.
- base.urdf.xacro crated to simplify launching (I think).
- Added wave and bow motions as example play_motion motions.