Paling

* Fix a bug that prevents using middleware via a custom Bottle.

* Check that Chrome path is a file that exists on Windows before blindly returning it.

* Allow users to override the amount of time Python will wait for Javascript functions running via Eel to run before bailing and returning None.

* Fix the implementation of 203, allowing users to pass their own bottle instances into Eel.

* Added support for `app` parameter to `paling.start`, which will override the bottle app instance used to run paling. This
allows developers to apply any middleware they wish to before handing over to paling.
* Disable page caching by default via new `disable_cache` parameter to `paling.start`.
* Add support for listening on all network interfaces via new `all_interfaces` parameter to `paling.start`.
* Support for Microsoft Edge

* Fix PyPi project description.