Part 2 of creating a more secure default setup

Part 2 of creating a more secure default setup

With this commit, the user name and password for the administrative
user will be MD5 hashes of a random string of numbers. You can set
the user name and password to your liking using the --admin-user and
--admin-pass switches for eg_db_config.pl (this will be the
documented method in the install docs) or via straight SQL as:

UPDATE actor.usr SET usrname = 'FOO', passwd = 'BAR' WHERE id = 1;

git-svn-id: svn://svn.open-ils.org/ILS/branches/rel_2_0@19245 dcc99617-32d9-48b4-a31d-7c20da2025e4