Fix for non-nested configuration & not found

[scott113341]

This is a very simple fix for #16. Took me a bit to understand the code via the debugger, but this passes all the tests, including the failing test case I added.

For reference, this was the existing test case (passing):

it('should return match to a notFound pattern if provided', () => {
  const {path, value} = switchPath('/home/33/books/10', {
    '/': 123,
    '/authors': 234,
    '/books': {
      '/': 345,
      '/:id': 456
    },
    '*': 'Route not defined'
  });
  expect(path).to.be.equal('/home/33/books/10');
  expect(value).to.be.equal('Route not defined');
});

And the failing one I added, which is identical, but non-nested:

it('should return match to a notFound pattern if provided non-nested configuration', () => {
  const {path, value} = switchPath('/home/33/books/10', {
    '/': 123,
    '/authors': 234,
    '/books': 345,
    '/books/:id': 456,
    '*': 'Route not defined'
  });
  expect(path).to.be.equal('/home/33/books/10');
  expect(value).to.be.equal('Route not defined');
});

Feel free to close if you don't think this is a robust enough solution to the problem. Also, ping @TylorS and @Cmdv because they were working on this before in #17 and #18.

[scott113341]

Well shoot, I forgot that Travis won't run the first commit with just the failing test case (to prove it's failing). Take my word for it, or:

git clone https://github.com/scott113341/switch-path.git @scott113341-switch-path
cd @scott113341-switch-path
git checkout e439d6f
npm i
npm test

[scott113341]

I think I need to add some more tests...

[TylorS]

LGTM 👍

[janat08]

Or you can just merge it already. There's a bug it's fixed