Update keywords/builtins in python.el to Python v2.7 (patch included)

[Christoph]

Hi,

Python v2.7 was released yesterday.

I saw that python.el was out of date in regards to fontifying of 
keywords and builtins referencing v2.5.1.

The attached patch will bring python.el up to date with the latest 
release of 2.7.

Note, that I not only updated the builtins but also checked for any 
other keywords that might have been added (there were none) and updated 
the referenced version accordingly, for example in l.96.

Christoph

python_keywords_builtins_v2_7.txt
Description: Text document