Fixes docs, adds some code restructure

I have to say that I am working with queues for a long time now. I have some PHP implementations as well, but it seems that bernard is going to become what I wanted to start on my own. So let this be my introduction to this project (with the pheanstalk driver).

I have to do some proof of concept code for myself to be sure that this is really what I need, but I think that I am going to be commited to this project.

Thanks guys for creating this awesome library.
If the extend becomes long then 80 lines or have multiple implements they are "used" before. But if the only case is a single extend then the whole class name (inlucding namespace) is used.