Added imu recorder
Merge branch 'peter_fiducial' of github.com:usc-clmc/usc-clmc-ros-pkg into peter_fiducial
fixed recorder bug
Minor update to rviz marker... added missing frame_id when clearing markers
Merge branch 'master' into peter_fiducial

Conflicts:
	usc_utils/usc_utilities/include/usc_utilities/rviz_marker_manager.h
	usc_utils/usc_utilities/src/rviz_marker_manager.cpp