Redesign ensure_annotations wrapper

Simplier redesign than before. Delegate all attribute access, repr, and str calls.
Good catch. I'll fix that and run a pep8 for good measure. Besides that,
does it look good?
On Jul 30, 2014 7:43 PM, "Andrey Kislyuk" <notifications@github.com> wrote:

> In ensure/__init__.py:
>
> > @@ -5,6 +5,7 @@
> >  import types
> >  import re
> >  import functools
> > +import types
>
> This import appears twice.
>
> --
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> <https://github.com/kislyuk/ensure/pull/9/files#r15621618>.
>