pgsql: Change CREATE TYPE to require datatype output and send functions

Log Message:
-----------
Change CREATE TYPE to require datatype output and send functions to have
only one argument. (Per recent discussion, the option to accept multiple
arguments is pretty useless for user-defined types, and would be a likely
source of security holes if it was used.) Simplify call sites of
output/send functions to not bother passing more than one argument.

Modified Files:
--------------
pgsql/doc/src/sgml/ref:
create_type.sgml (r1.54 -> r1.55)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_type.sgml.diff?r1=1.54&r2=1.55)
pgsql/src/backend/access/common:
printtup.c (r1.89 -> r1.90)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/common/printtup.c.diff?r1=1.89&r2=1.90)
pgsql/src/backend/bootstrap:
bootstrap.c (r1.202 -> r1.203)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/bootstrap/bootstrap.c.diff?r1=1.202&r2=1.203)
pgsql/src/backend/commands:
copy.c (r1.240 -> r1.241)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/copy.c.diff?r1=1.240&r2=1.241)
typecmds.c (r1.70 -> r1.71)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/typecmds.c.diff?r1=1.70&r2=1.71)
pgsql/src/backend/executor:
spi.c (r1.137 -> r1.138)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/spi.c.diff?r1=1.137&r2=1.138)
pgsql/src/backend/nodes:
print.c (r1.75 -> r1.76)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/nodes/print.c.diff?r1=1.75&r2=1.76)
pgsql/src/backend/tcop:
fastpath.c (r1.79 -> r1.80)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/tcop/fastpath.c.diff?r1=1.79&r2=1.80)
pgsql/src/backend/utils/adt:
arrayfuncs.c (r1.119 -> r1.120)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/arrayfuncs.c.diff?r1=1.119&r2=1.120)
rowtypes.c (r1.10 -> r1.11)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/rowtypes.c.diff?r1=1.10&r2=1.11)
ruleutils.c (r1.194 -> r1.195)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/ruleutils.c.diff?r1=1.194&r2=1.195)
varlena.c (r1.119 -> r1.120)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/varlena.c.diff?r1=1.119&r2=1.120)
pgsql/src/backend/utils/cache:
lsyscache.c (r1.124 -> r1.125)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/cache/lsyscache.c.diff?r1=1.124&r2=1.125)
pgsql/src/backend/utils/misc:
guc.c (r1.260 -> r1.261)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/misc/guc.c.diff?r1=1.260&r2=1.261)
pgsql/src/include/utils:
lsyscache.h (r1.98 -> r1.99)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/lsyscache.h.diff?r1=1.98&r2=1.99)
pgsql/src/pl/plperl:
plperl.c (r1.71 -> r1.72)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plperl/plperl.c.diff?r1=1.71&r2=1.72)
pgsql/src/pl/plpgsql/src:
pl_exec.c (r1.135 -> r1.136)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpgsql/src/pl_exec.c.diff?r1=1.135&r2=1.136)
pgsql/src/pl/tcl:
pltcl.c (r1.95 -> r1.96)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/pl/tcl/pltcl.c.diff?r1=1.95&r2=1.96)