prefix - prefix: text prefixing support is now deprecated

Log Message:
-----------
text prefixing support is now deprecated ('text'::prefix_range is implicit)

Modified Files:
--------------
prefix:
README.txt (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/README.txt.diff?r1=1.11&r2=1.12)
prefix.c (r1.40 -> r1.41)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/prefix.c.diff?r1=1.40&r2=1.41)
prefix.sql.in (r1.21 -> r1.22)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/prefix/prefix/prefix.sql.in.diff?r1=1.21&r2=1.22)