in `nbextensions/config/render/render`, add option to absolutify URLs in src/href attributes
in `nbextensions/config/render/render`, add option to absolutify URLs in src/href attributes

absolutify patch

jcb91/IPython-notebook-extensions,juhasch/IPython-notebook-extensions,jbn/IPython-notebook-extensions,ipython-contrib/IPython-notebook-extensions,andyneff/IPython-notebook-extensions,juhasch/IPython-notebook-extensions,benvarkey/IPython-notebook-extensions,benvarkey/IPython-notebook-extensions,jbn/IPython-notebook-extensions,benvarkey/IPython-notebook-extensions,ipython-contrib/IPython-notebook-extensions,jcb91/IPython-notebook-extensions,andyneff/IPython-notebook-extensions,jcb91/IPython-notebook-extensions,ipython-contrib/IPython-notebook-extensions,andyneff/IPython-notebook-extensions,ipython-contrib/IPython-notebook-extensions,andyneff/IPython-notebook-extensions,juhasch/IPython-notebook-extensions,jbn/IPython-notebook-extensions,benvarkey/IPython-notebook-extensions,jbn/IPython-notebook-extensions