Add step support to sliders

[a2ikm]

I tried to add step support to sliders.

With this commit, we can use "step" attribute and "fixed" attribute.
"step" attribute specifies steps of the slider, and "fixed" does the number of decimal places.

I think "fixed" is not a valid attribute in HTML5, but I have no idea.
I'll be happy when some one makes it better.

Thanks.

[toddparker]

We'll take a look, thanks!

[fedeisas]

I know this is not the right place to ask, but I didn't found any group to discuss jQuery Mobile. Is there any way to use onChange on sliders? I want to trigger an Ajax request every time the value of the slide changes... Any ideas?

[johnbender]

a2ikm,

I had originally built the controls to allow for data-step's use with the keyboard bindings but clearly the step attribute is the way to go here. A couple notes:

1. We want to emulate the functionality from jquery ui by using whole integer values.
2. I was unable to get this working in the latest chrome

[johnbender]

a2ikm,

I'm going to move this to the feature request backlog in the wiki. We'll come back to it after the beta/release. Thanks again for taking the time to contribute and this is definitely necessary.