A lot of cleanup is still needed, refactoring the CSS to be consistent, removing all sorts of unused stuff etc

This is a fix for public messages, where a malicious pod could spoof a message from someone a user was connected to, as the verified signatures were not checked that the object was also from said sender.  This hole only affected public messages, and the private part of code had the correct checks
THX to s-f-s(Stephan Schulz) for reporting and tracking down this issue, and props to Raven24(florian.staudacher@gmx.at) for helping me test the patch

- `Rails.root` is a `Pathname`, so let's use `Rails.root.join`
- Clean up most of the remaining `File.join`s

kill services users with fire. we need this feature, but we need to just start from scratch because this is redonkalonk

also now add a beta role

and improving admin functionality

- PostgreSQL doesn't allow double quotes for values. Double quotes are
  used for surrounding table names that contain spaces. Single quotes
  should be used for values.

- DELETE in a JOIN is not permitted in SQL-99 (see
  http://drupal.org/node/555562) so we use USING with WHERE instead