Update TODO with assigned task

So that everybody can know which tasks are already in progress.
Merge branch 'master' of github.com:serge-sans-paille/pythran
Make Python and Cxx backend denser

Remove additional newlines that were disgraceful in doc test strings.
Code cleaning

Use generic_visit whenever possible.
Improve Methods Normalization

* Now allows to call methods as a function, e.g. list.append(l,1)
* More testing too
Rework NormalizeAttribute pass

Now that NormalizeMethods is more complete, NormalizeAttribute is
getting simpler.
Harmonize the __builtin__ module with other modules

ExpandBuiltins makes sure all builtins are referenced as members of the
__builin__ module.

This removes a lot of ugly hooks to handle intrinsics in a different way
than other modules.
Add a failfast mode to setup.py test

For easier debugging of failing test cases. Requested by Pierrick!