drag-drop

Describe the bug

When using the Swap plugin, it's impossible to cancel a swap once the swap threshold has been met for an item. You can't drag the item back to its original place to prevent a swap. This happens with or without the revertOnSpill: true option.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://sortablejs.github.io/Sortable/#swap
2. Drag "Item 1" to h

After #1109 we do not need the whole JQuery anymore, we should use the lightweight Zepto as a drop-in replacement

• Zepto is 9.6K
• JQuery is 84K

Also an option to not include any library would be nice (all Silex components shoud be jquery-free)

• replace JQuery with Zepto
• remove JQuery syntax from components
• add an option to not include JQuery/

@reach/dialog is super nice with these.

Version: 2.6.0
Angular 4.3.5
AngularCli: 1.4.0-rc.1

When running on universal I get the following error

ERROR TypeError: this.el.nativeElement.querySelector is not a function
    at Draggable.getDragHandleElement (C:\dev\git_clones\app\node_modules\ng2-drag-drop\src\directives\draggable.directive.js:136:49)
    at Draggable.applyDragHandleClass (C:\dev\git_clones\app\node_modules\ng

Thanks for excellent implementation.

One question: What's the best way to render the page after generating the JSON ?