orafce - orafce: Remove support for PostgreSQL before 8.3.

Log Message:
-----------
Remove support for PostgreSQL before 8.3. (Patch from Pavel, formerly
the orafce3 module)

Modified Files:
--------------
orafce:
INSTALL.orafunc (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/INSTALL.orafunc.diff?r1=1.2&r2=1.3)
Makefile (r1.21 -> r1.22)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/Makefile.diff?r1=1.21&r2=1.22)
alert.c (r1.10 -> r1.11)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/alert.c.diff?r1=1.10&r2=1.11)
datefce.c (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/datefce.c.diff?r1=1.11&r2=1.12)
file.c (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/file.c.diff?r1=1.7&r2=1.8)
orafunc.h (r1.8 -> r1.9)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/orafunc.h.diff?r1=1.8&r2=1.9)
others.c (r1.9 -> r1.10)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/others.c.diff?r1=1.9&r2=1.10)
pipe.c (r1.14 -> r1.15)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/pipe.c.diff?r1=1.14&r2=1.15)
pipe.h (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/pipe.h.diff?r1=1.3&r2=1.4)
plvsubst.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/plvsubst.c.diff?r1=1.2&r2=1.3)
putline.c (r1.9 -> r1.10)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/putline.c.diff?r1=1.9&r2=1.10)
utility.c (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/utility.c.diff?r1=1.3&r2=1.4)

Removed Files:
-------------
orafce:
backport.c
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/backport.c)
magic.c
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/magic.c)
orafunc.sql.in.7.4
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/orafunc.sql.in.7.4)