Mrproper/table

I tried to generate a table.py file to know where arguments/defaults are missing but it was really hard to read so I finally keep it this way.
Here are MrProper commit which are still valid.
On Sat, Nov 29, 2014 at 11:11:38AM -0800, pbrunet wrote:
> In pythran/tables.py:
> > @@ -1089,13 +854,42 @@
> >  if 'WindowsError' in sys.modules['__builtin__'].__dict__:
> >      MODULES['__builtin__']['WindowsError'] = ConstExceptionIntr()
> >
> > -# detect and prune unsupported modules
> > -try:
> > -    __import__(&quot;omp&quot;)
> > -except EnvironmentError:
> > -    logger.warn(&quot;Pythran support disabled for module: omp&quot;)
> > -    del MODULES[&quot;omp&quot;]
> And? Removing it from supported modules will not change anything in the code.

It will prevent error in constant_folding

pythran/optimizations/constant_folding.py:44: