add method to get data directories
add method to get data directories

bcantoni/ccm,mike-tr-adamson/ccm,thobbs/ccm,mikefero/ccm,tolbertam/ccm,mike-tr-adamson/ccm,thobbs/ccm,mike-tr-adamson/ccm,tolbertam/ccm,pcmanus/ccm,mikefero/ccm,pcmanus/ccm,pcmanus/ccm,bcantoni/ccm