Initial SourceForge release

I'd like to move the zope LDAPAdapter product here so we can make the development process more publicly available.

This is, after all a security add-on for zope which some people are going to depend on - the opensource saying that many eyes make bugs shallow" applies particularly to security code.

So, if you use this package, please do whatever you can to make it better. Contributions to the codebase or the documentation will be warmly welcomed.