Fix text inputs for jQuery Mobile 1.3

[chewi]

This fixes the odd double border issue seen on text inputs. It hasn't been well-tested and I believe a general refactor is needed for 1.3 but it may help some people in the short term.

[paskster]

I have the same issue since I upgraded to jquerymobile 1.3.
Am I doing something wrong or do I really need to change the code?

[paskster]

I guess it was my own fault. I just used the javascript code of jquerymobile 1.3 but not the new CSS Code. That broke the design of the input fields.
Not that I use both, it works.

[taitems]

So does the pull need landing or closing, I'm not quite sure?

[chewi]

I think that depends on you. If you're going to rework it properly for 1.3 then you won't need this. Otherwise you might as well merge it. I built my own theme in the end so I'm not longer using this.