The D3.js collapsible tree with editing nodes functionality.
Nodes can be renamed, added or deleted.
Popup menu script D3 Context Menu copied from http://codepen.io/billdwhite/pen/VYGwaZ
forked from robschmuecker's block: D3.js Drag and Drop, Zoomable, Panning, Collapsible Tree with auto-sizing.
forked from mattsrinc's block: D3.js Drag and Drop Collapsible Tree with Node Editing
Modified http://underscorejs.org/underscore-min.js to a secure url
Modified http://code.jquery.com/jquery-1.10.2.min.js to a secure url
Modified http://d3js.org/d3.v3.min.js to a secure url
https://underscorejs.org/underscore-min.js
https://code.jquery.com/jquery-1.10.2.min.js
https://d3js.org/d3.v3.min.js