pgtcl - libpgtcl: * some additional code to support callback for async

Log Message:
-----------
* some additional code to support callback for async queries

Modified Files:
--------------
libpgtcl/generic:
pgtclCmds.c (r1.80 -> r1.81)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgtcl/libpgtcl/generic/pgtclCmds.c?r1=1.80&r2=1.81)
pgtclId.c (r1.47 -> r1.48)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgtcl/libpgtcl/generic/pgtclId.c?r1=1.47&r2=1.48)