orafce - orafce: Change not to return float8 but to return numeric to

Log Message:
-----------
Change not to return float8 but to return numeric to avoid '-0'. Oracle always uses NUMBER and it is more similar to number than float8.

Modified Files:
--------------
orafce:
assert.c (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/assert.c.diff?r1=1.4&r2=1.5)
convert.c (r1.3 -> r1.4)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/convert.c.diff?r1=1.3&r2=1.4)
datefce.c (r1.14 -> r1.15)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/datefce.c.diff?r1=1.14&r2=1.15)
file.c (r1.16 -> r1.17)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/file.c.diff?r1=1.16&r2=1.17)
orafunc.h (r1.16 -> r1.17)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/orafunc.h.diff?r1=1.16&r2=1.17)
orafunc.sql.in (r1.55 -> r1.56)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/orafunc.sql.in.diff?r1=1.55&r2=1.56)
plunit.c (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/plunit.c.diff?r1=1.7&r2=1.8)
plvstr.c (r1.17 -> r1.18)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/plvstr.c.diff?r1=1.17&r2=1.18)
plvsubst.c (r1.8 -> r1.9)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/plvsubst.c.diff?r1=1.8&r2=1.9)
putline.c (r1.14 -> r1.15)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/putline.c.diff?r1=1.14&r2=1.15)
uninstall_orafunc.sql (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/uninstall_orafunc.sql.diff?r1=1.6&r2=1.7)
utility.c (r1.8 -> r1.9)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/utility.c.diff?r1=1.8&r2=1.9)
orafce/expected:
orafunc.out (r1.21 -> r1.22)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/expected/orafunc.out.diff?r1=1.21&r2=1.22)
orafce/sql:
orafunc.sql (r1.19 -> r1.20)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/orafce/orafce/sql/orafunc.sql.diff?r1=1.19&r2=1.20)