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Merge pull request #51 from Nagadum/bugfix

Bugfix in map and ifilter :
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.
Clean up for cxxgen
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!
Code cleaning, commenting and refactoring

* More comments
* Less spaghetti code
* Cleaner implementation of intrinsic.py
Merge pull request #52 from pbrunet/master

Clean up for cxxgen.py
Rework pass manager interface

* Un-spaghettify class hierarchy
* rework API as a combination of `prepare' and run

`prepare' gathers analysis dependencies
`run' performs the transformation

to add more preparation, overload prepare
to add post-processing, overload run
Sanitize cxx type handling

* Remove obsolete/unused code
* Use a generic type builder for all types
* Cleaner class hierarchy
* Add doctest / docstring accordingly
More code cleaning

* docstring for a few more analysis
* less obfuscated code
Fix bug in Globals

The __builtin__ module is obviously always preloaded...
PEP8 compliancy
Adding file support based on C FILEs.
Needs reimplementation of core::string to insure better performances.
Bug correction : enumerate and xrange
* Enumerate : enumerating over an generator expression and used inside another operator like map
* xrange : max(xrange(...))
* test cases