[jQuery] bad iterator in interface's sortables

[Francisco Brito]

The iterator being used is a for-in but the object is an Array, so it's sometimes breaking and sometimes doing insane things due to my additions to Array.prototype.

Sortables:92
for(i in jQuery.iSort.changed){

I suggest changing it to a vanilla for loop:
for(var i = 0; i < jQuery.iSort.changed.length; i++){

Optimization and actually seeing if it works is an exercise to the reader ;)

IMHO I don't think iterating with a for-in is a good idea if the object is an array.

Cheers,
Brito

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