jQuery UI Themeroller support

[aensley]

Hello. Thank you for this excellent plugin. It is very powerful!

I wanted to request one thing: jQuery UI Themeroller support. Our web app uses jQuery UI extensively to provide a consistent look and feel. We also provide users with the ability to switch between several themes to adjust it to their taste. In its current state, this causes idealforms to be inconsistent with everything else in our web app.

Adding support for standard jQuery UI themes would make this plugin even more robust and flexible. It would eliminate the need for many styles that are currently in the code, including custom styles for the datepicker, which would make idealforms much lighter to download and handle in the browser.

For reference: the jQuery UI Theming API.

I realize you've spent a lot of time creating the current styles in .less, and they look great! But I think this change would benefit idealforms and its users.

Thank you for your consideration!