A Knockout.js binding to SortableJS.
npm install knockout-sortablejsDemo: http://rubaxa.github.io/Sortable/
``html
Using this bindingHandler sorts the observableArray when the user sorts the HTMLElements.
The sortable/draggable bindingHandlers supports the same syntax as Knockouts built in template binding except for the
data option, meaning that you could supply the name of a template or specify a separate templateEngine. The difference between the sortable and draggable handlers is that the draggable has the sortable group option set to {pull:'clone',put: false} and the sort option set to false by default (overridable).#### Other attributes are:
* options: an object that contains settings for the underlaying sortable, ie
group,handle, events etc.
* collection: if your foreach` array is a computed then you would supply the underlaying observableArray that you would like to sort here.