[PD] Pd-extended final release candidate - please test!

[Si Mills]

Hi

I've noted a couple of bugs:

* FFT seems to be broke on PPC. I just get nasty crackles. (Pb G4 /  
10.4.10)
* [blosc~] doesn't instantiate - You have to physically add a '~' to  
the external in the library to fix it.
* [freeverb~] produces no sound

thanks