plpsm - plpgpsm: Declare condition support (SQL2003 compliant)

Log Message:
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Declare condition support (SQL2003 compliant)

Modified Files:
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plpgpsm/src:
gram.y (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/gram.y.diff?r1=1.1.1.1&r2=1.2)
pl_comp.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/pl_comp.c.diff?r1=1.1.1.1&r2=1.2)
pl_exec.c (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/pl_exec.c.diff?r1=1.1.1.1&r2=1.2)
plpgpsm.h (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plpsm/plpgpsm/src/plpgpsm.h.diff?r1=1.1.1.1&r2=1.2)