core optimized
optimized core: fixed inlining, added tests.
added @inline function decorator, and pystone ultra/fast tests.
added Richards benchmark test, fixed if expression bug, updated README
Merge pull request #54 from techtonik/master

Fix issue #53: AttributeError: 'Slice' object has no attribute 'value'

I guess this has slipped by me thus far because in all my tests `slice` is an Expr node, with a .value.

thanks for the fix.
allow subclasses and multiple inheritance in `with javascript` mode.
optimized core
added for loop enumerate
Attempt to fix translate.py broken by commented main() in 84bb4dc17c