[Edu-sig] Smoother long ints in 2.2a4

[Kirby Urner]

New in 2.2a4 -- conversion to long integer happens automatically
when needed:

   >>> 2**34
   17179869184L
   >>> a =1983409182340981239481
   >>> a
   1983409182340981239481L

I like it!

Kirby