pgestraier - pgestraier: initial implementation of hints using (fake)

Log Message:
-----------
initial implementation of hints using (fake) atribute names in form HINTS.something
(e.g. HITS.HIT or HINTS.WORDNUM...)

Modified Files:
--------------
pgestraier:
test.sql (r1.19 -> r1.20)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgestraier/pgestraier/test.sql.diff?r1=1.19&r2=1.20)
pgest.c (r1.25 -> r1.26)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgestraier/pgestraier/pgest.c.diff?r1=1.25&r2=1.26)