Support for __get__ and __set__ for descriptors
Merge pull request #123 from tjhance/des

Conflicts:
	src/runtime/objmodel.cpp
Change 'expected: fail' to 'skip-if' since they work on some platforms and not others
Import some more CPython header files
First steps with pypa side-by-side

Signed-off-by: Vinzenz Feenstra <evilissimo@gmail.com>
More translation

- AugAssign
- BinOp
- BoolOp
- UnaryOp
- For
- Compare
- Number
- Break
- Op translations

Signed-off-by: Vinzenz Feenstra <evilissimo@gmail.com>
More integration and AST_Ellipsis type added

Signed-off-by: Vinzenz Feenstra <evilissimo@gmail.com>
Added more implementation

* Implementations for:
  - yield
  - doc strings
  - long
  - lambda
  - generator support

* Enabled implementation for sets
* updated and fixed comparisons

Applied make format

Signed-off-by: Vinzenz Feenstra <evilissimo@gmail.com>