opal/opal — pull request #199 by fntzr (2013-03-10 10:26:18+00:00)
Title: Fixed `Include` Bug

Hi.

I fixed the error with `include` method.

Before

```ruby
module M
def a
'M:a'
end
end

class A
include M
def a
'A:a'
end
end
#and
class B
def a
'B:a'
end
include M
end

A.new.a #=> 'A:a' - ok
#but
B.new.a #=> 'M:a' - wrong
```
Also i change `Native` from `module` to `class`.

Thanks,