[TYPO3-ect] Integrate ajax with extensions

[Christoph Koehler]

> You start with nothing, and you can initialise what ever you need. That  
> eid class is available to help you with that. At the moment, if I am up  
> to date, it only gives you methods to initialise fe users. So, for now,  
> you have the initialise the rest of what you need.

Yeah, there are two methods actually, one for the db and one for the  
fe-user. I cannot do anything else though; can't get the $GLOBALS['TSFE'],  
nor pibase, nor any of my classes because they are all interconnected with  
themselves and pibase.
So as far as I can tell, I can make Ajax applications, but not tie them in  
with any other FE stuff except users.