Return a dict mapping all job ids to job information

def get_jids():
    '''
    Return a dict mapping all job ids to job information
    '''
    serv = _get_serv(ret=None)
    ret = {}
    for s in serv.mget(serv.keys('load:*')):
        if s is None:
            continue
        load = salt.utils.json.loads(s)
        jid = load['jid']
        ret[jid] = salt.utils.jid.format_jid_instance(jid, load)
    return ret