Added tests and docs for the get method.
Added the get method.
Tuple is now an array-like object!

So now it has the same interface as arrays. Had to add a toArray method,
but that's all really.
Added some examples for the array-like stuff.
Added more on array-like docs.
Renamed the Example section to Examples.
Added tests and documentation for forEach.
Added some missing new statements to tests.
Added the forEach method source.
Added docs and tests for the equals method.
Added the, extremely efficient, equals method.
Added tests and documentation for valueOf.
Added the implementation for valueOf.
Merge branch 'feature/helpers' into develop