MISC: update changelog

I screwed up in the previous commit
MISC: add Python 3.3 to travis testing

This is just an experiment, to see how much joblib is broken under Python
3.3.
ENH: fix all errors for Python 3.2

Remaining test failures + parallelism probably not working
Fix more Python 3 bugs
BUG: fix numpy_pickle under Python3
MISC: remove Py2.5 from travis

Python 2.5 is no longer supported
BUG: add forgotten file
ENH: better lambda handling in Py 2.X
MISC: travis: Py3.2 -> Py3.3
MISC: doctests robust to int32/int64
ENH: parallel working on Py 3.X
COSMIT: remove Py3.X rewriting code
ENH: memory: Persit small repr of input
BUG: Py 3.X compat
TST: smoke-test verbosity code in memory
Clean: remove code for old-style object exceptions

This code was explored only when exceptions raise were old-style objects,
which is no longer supported
TST: Robustness to int32/int64 in doctests
ENH: raise an error on recursive subprocess

This feature attempts to raise an error when subprocesses are spawned
recursively, as under Windows when people don't protect their code.
DOC: document __main__ behavior
ENH: compat Py2.X/Py3.X