[TYPO3-core] use php5 for new code

[Ingo Renner]

Hi all,

just some note on new code:

I'd like to see new developments to be in php5 only because of the more 
advanced OO capabilities and encapsulation of object data.

With this I'd also ask for your opinion about exception handling...
With one of my next patches I'd like to introduce exception classes.

How should they be named and where shall we put them?

How about this f.e.?
t3lib/class.t3lib_invalidargumentexception.php


all the best
Ingo