Fix "Loading" container is not removed in IE9

Don't laugh but I discovered that  this wonderful application does not work correctly with IE 9.
"Loading" div is not removed.
After looking at it I realized that  `$.support.transitionEnd` is not fired because IE9 does not support transitions (what a suprise).
Doing this modyfication made it work on IE9 on my computer
Fix "Loading" container is not removed in IE9
Merge pull request #100 from tegelane89/patch-1

Fix "Loading" container is not removed in IE9