between Postgres and PostgreSQL.

Fix misspelling of disbursion to dispersion.

Use "generic functions" for math and other routines.
Use SQL92 "type 'literal'" syntax rather than Postgres "'literal'::type".

Fixed bug in createdb/alternative location

Made ipcclean work on Linux.

ecpg reference page still needs formatting.

No big deal; fixed lots of other markup at the same time.
Bigest change: make sure there is no whitespace
 in front of <term> contents.
This will probably help the other output types too.

 of Norm's Modular Style Sheets and jade/docbook.
From Vince Vielhaber <vev@michvhf.com>.

 Haven't yet done cleardbdir, ipcclean, pg_passwd, and pg_upgrade.
Add reference info for the SQL VACUUM command (oops, forgot it earlier).