Allow URI to be used for 'redirect'.

[jalcine]

I tend to do a lot of URI validation when I'm handling redirects. This change allows you to pass in a URI to use for redirecting. It's a bit more semantically correct (and helps with a bit of type-checking).

[falood]

Thanks @jalcine but there's a compile warning about it, could you also fix it?

Compiling 56 files (.ex)
warning: definitions with multiple clauses and default values require a header. Instead of:
    def foo(:first_clause, b \\ :default) do ... end
    def foo(:second_clause, b) do ... end
one should write:
    def foo(a, b \\ :default)
    def foo(:first_clause, b) do ... end
    def foo(:second_clause, b) do ... end
def redirect/3 has multiple clauses and defines defaults in one or more clauses
  lib/maru/response.ex:27

[jalcine]

Hmm. I'm using 1.6, didn't get this. Lemme check it out.

[falood]

it's a compile warning, run mix clean and you'll see it when recompile 🙂

[jalcine]

Pushed up that fix.

[falood]

thanks @jalcine