Spellchecking and such

doc/src/sgml/backup.sgml

doc/src/sgml/catalogs.sgml

doc/src/sgml/client-auth.sgml

doc/src/sgml/config.sgml

doc/src/sgml/cvs.sgml

doc/src/sgml/datatype.sgml

doc/src/sgml/ddl.sgml

doc/src/sgml/docguide.sgml

doc/src/sgml/ecpg.sgml

doc/src/sgml/func.sgml

doc/src/sgml/gist.sgml

doc/src/sgml/history.sgml

doc/src/sgml/indices.sgml

doc/src/sgml/information_schema.sgml

doc/src/sgml/libpq.sgml

doc/src/sgml/lobj.sgml

doc/src/sgml/maintenance.sgml

doc/src/sgml/plperl.sgml

doc/src/sgml/plpgsql.sgml

doc/src/sgml/plpython.sgml