ip4r - ip4r: add README, and 8.1 fixed stuff

Log Message:
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add README, and 8.1 fixed stuff

Modified Files:
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ip4r:
Makefile (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/ip4r/ip4r/Makefile.diff?r1=1.2&r2=1.3)
ip4r.c (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/ip4r/ip4r/ip4r.c.diff?r1=1.2&r2=1.3)
ip4r.sql.in (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/ip4r/ip4r/ip4r.sql.in.diff?r1=1.1.1.1&r2=1.2)

Added Files:
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ip4r:
README.ip4r (r1.1)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/ip4r/ip4r/README.ip4r?rev=1.1&content-type=text/x-cvsweb-markup)