pgsql-server: Synced parser and keyword list.

Log Message:
-----------
Synced parser and keyword list.

Modified Files:
--------------
pgsql-server/src/interfaces/ecpg:
ChangeLog (r1.267 -> r1.268)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/interfaces/ecpg/ChangeLog.diff?r1=1.267&r2=1.268)
pgsql-server/src/interfaces/ecpg/preproc:
keywords.c (r1.62 -> r1.63)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/interfaces/ecpg/preproc/keywords.c.diff?r1=1.62&r2=1.63)
preproc.y (r1.287 -> r1.288)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/interfaces/ecpg/preproc/preproc.y.diff?r1=1.287&r2=1.288)