Ldapjs: A reprise of LDAP

I'm quite excited about this. LDAP has always been an interesting protocol, but with rather complicated implementations.

Node.js in general seems to have potential in reviving various purpose-designed protocols, as they will be just as easy to handle as HTTP.

If I find the time, I'll look into connecting this with NoCR (https://github.com/NoCR/NoCR), as that provides a standard tree handling API with different storage back-ends.