Parse data table config file for details on tool *.loc location and columns.

def _get_galaxy_data_table(name, dt_config_file):
    """Parse data table config file for details on tool *.loc location and columns.
    """
    out = {}
    if os.path.exists(dt_config_file):
        tdtc = ElementTree.parse(dt_config_file)
        for t in tdtc.getiterator("table"):
            if t.attrib.get("name", "") in [name, "%s_indexes" % name]:
                out["column"] = [x.strip() for x in t.find("columns").text.split(",")]
                out["file"] = t.find("file").attrib.get("path", "")
    return out