First take on supporting touch events

[carhartl]

For our touch platform web app we needed true touch events (we're not using click for interactions). Here's the first part.

I'd like to add some more methods, like double_tap and swipe.

In an acceptance test you simply write:

find('.tap-me').single_tap

[jonleighton]

Thanks for the PR. As I first step, I think a discussion about the API for this ought to happen at the Capybara level. I don't know if anyone has proposed this to Capybara directly yet, but I want to be cautious about adding non-standard methods that could harm interoperability with other drivers.

So I think the first step is to agree on an API with the Capybara maintainers, then implement the API in Poltergeist.

Would you be up for finding/starting a Capybara ticket for this issue and adding your comments? Thanks

[jonleighton]

I think this is better as an issue for now as I am not ready to merge the code yet. So I have created issue #141 where we can continue the discussion until we're ready to merge code. Thanks