Update Makefile.install and README for PostgreSQL 9.0

Update Makefile.install and README for PostgreSQL 9.0

Along with cleaning out references to Debian Etch, Debian Lenny,
Ubuntu Hardy, add the Debian Squeeze, Ubuntu Lucid, and Fedora 14
PostgreSQL 9.0 repo locations, and convert the README to Asciidoc
syntax.

Remove references to Fedora 13 and genericize it for Fedora 14
(with the thought that Fedora 15 will probably be coming out
soon). Also add PostgreSQL 9.0 packages as a target for the
database server in Makefile.install.

Signed-off-by: Dan Scott <dan@coffeecode.net>
Signed-off-by: Bill Erickson <berick@esilibrary.com>
git-svn-id: svn://svn.open-ils.org/ILS/trunk@20352 dcc99617-32d9-48b4-a31d-7c20da2025e4