Fixed MenuProvider render prop going down the children

[Vinarnt]

The render prop of the MenuProvider was not extracted when cloning children.
Using the render prop of the MenuProvider would also add it to the children throwing an error message in the console of type:

Warning: Invalid value for prop `render` on <div> tag. Either remove it from the element, or pass a string or number value to keep it in the DOM. For details, see https://fb.me/react-attribute-behavior

[coveralls]

Coverage increased (+0.008%) to 97.444% when pulling b97c15b on Vinarnt:master into 2b5bdec on fkhadra:master.

[fkhadra]

Hey for the v5. I've removed the MenuProvider component