Require Ruby 1.9 or higher
remove contrib/
Use Ruby 1.9 syntax instead of 2.0
Do not crash if no configuration file is found
fix the LDAP netgroup test
stop using a private accessor for @config, and support initialization from a hash
Tweaks to get the testsuite running again.
Improved documentation.
A new setup.sh that actually works.
Tested everything under Debian w/ Ruby 1.9.3