privileges.  INSERT and COPY FROM now require INSERT (only).  Add
privileges regression test.

Fix misspelling of disbursion to dispersion.

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

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>.

 the trailing "-1". This makes a cleaner html output file name.
Clean up a few refpurpose fields.

Make sure all files end with a newline.