path-to-regexp fix

Hello,

There were some issues introduced by latest upgrade of path-to-regexp. Namely `'*'` is no longer a catch-all pattern. `'(.*)'` needs to be used now instead (see [path-to-regexp readme](https://github.com/component/path-to-regexp#compatibility-with-express--4x)).

I also updated examples to point to browserified version of script `page.js` rather than `index.js` in order to avoid error due to `require` function not being defined.

Cheers