pgsql: Add INCLUDING CONSTRAINTS to CREATE TABLE LIKE.

Log Message:
-----------
Add INCLUDING CONSTRAINTS to CREATE TABLE LIKE.

Greg Stark

Modified Files:
--------------
pgsql/doc/src/sgml/ref:
create_table.sgml (r1.100 -> r1.101)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/ref/create_table.sgml.diff?r1=1.100&r2=1.101)
pgsql/src/backend/commands:
tablecmds.c (r1.186 -> r1.187)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/tablecmds.c.diff?r1=1.186&r2=1.187)
pgsql/src/backend/nodes:
copyfuncs.c (r1.336 -> r1.337)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/nodes/copyfuncs.c.diff?r1=1.336&r2=1.337)
equalfuncs.c (r1.272 -> r1.273)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/nodes/equalfuncs.c.diff?r1=1.272&r2=1.273)
pgsql/src/backend/parser:
analyze.c (r1.335 -> r1.336)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/analyze.c.diff?r1=1.335&r2=1.336)
gram.y (r2.547 -> r2.548)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/gram.y.diff?r1=2.547&r2=2.548)
keywords.c (r1.171 -> r1.172)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/keywords.c.diff?r1=1.171&r2=1.172)
pgsql/src/include/commands:
tablecmds.h (r1.27 -> r1.28)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/commands/tablecmds.h.diff?r1=1.27&r2=1.28)
pgsql/src/include/nodes:
parsenodes.h (r1.311 -> r1.312)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/nodes/parsenodes.h.diff?r1=1.311&r2=1.312)
pgsql/src/test/regress/expected:
inherit.out (r1.19 -> r1.20)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/inherit.out.diff?r1=1.19&r2=1.20)
sanity_check.out (r1.31 -> r1.32)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/expected/sanity_check.out.diff?r1=1.31&r2=1.32)
pgsql/src/test/regress/sql:
inherit.sql (r1.9 -> r1.10)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/test/regress/sql/inherit.sql.diff?r1=1.9&r2=1.10)