add commits to tests/oralong.test
implement [orainfo client] command
remove member sub_len from OratclStms.
remove typedef OratclSubs and member sub_list from OratclStms.
fix ckalloc/ckfree on NULL values
actually remove OMV_null
remove global Tcl_Obj OMV_null.
whitespace
adjust test list and add some debugging output at the end
more test cleanup
