Allow Raphael to work in pages with a Content Security Policy that disallows 'unsafe-eval'.

[SlexAxton]

Special case the Clone method to avoid using the Function constructor so Raphael works in pages with a Content Security Policy that disallows eval.

The input to this function is really only ever a function and and array, but unfortunately typeof or instanceof checks here won't work because the arrays will pass the same checks as the functions. Since the only special operation that's performed on the arrays is a join, I used that to detect whether to use a constructor or to fallback to a function literal.

The rest is just my editor stripping whitespace, which is probably a good thing anyways.

[DmitryBaranovskiy]

How come typeof will yield the same result for array as for function? What about plain object {}?