Fix for #93

[groberts9]

Sorry for long delay; I have now provided code that as far as I know fixes the touch button problem fully. Unfortunately I had to exclude two unit tests, related to touch usage; I do not know why they fail as these features work fine in the browser.

When updating the forked repository, I discovered the code I documented in issue #93 only worked for a single splitbar (or to be more accurate, an odd number of splitbars, in a single ui-layout div.)

I created two new test HTML files: demo2-touch.html, demo2-touch-jquery.html. Both have large buttons for touch usage, and one includes the jQuery library. I have discovered that the existing release still does not work with touch when the jQuery library is present - I documented this problem in issue #82.)

I have tested mouse operation on Chrome and Firefox on Windows 7, and tested touch and mouse on Chrome on Windows 8, and Safari on iOS 8.