add more stuff
add test_quota() function; cosmetics
don't use hardcoded filter path at all
minor cosmetics
drop 'null' filter
bump version
Use sxi_cbdata_set_operation() when possible

Remove sxi_setclusterr() since it is now sxi_cbdata_setclusterr().
Pass cbdata through upload functions to set operation to proper cbdata
Do not leak cbdata when creating event fails