plproxy - plproxy: make RUN default to ANY

Log Message:
-----------
make RUN default to ANY

Modified Files:
--------------
plproxy/doc:
syntax.txt (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plproxy/plproxy/doc/syntax.txt.diff?r1=1.5&r2=1.6)
plproxy/src:
parser.y (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plproxy/plproxy/src/parser.y.diff?r1=1.7&r2=1.8)