ce.MWExtensionNode
* Build up the wikitext for round-tripping using jQuery, and pass
through the attributes from data-mw
dm.MWExtensionNode
* Use a static getExtensionName to correctly get the extension
name from the dataElement (as the getMatchRdfaTypes hack won't
work for MWAlienExtensionNode's)
dm.MWAlienExtensionNode
* Implement new static getExtensionName function
Bug: 53543
Change-Id: Id4e83c14ec68c3b3970d05317477f19aaf31abe4
Create getter for extensionsName which is overriden by
MWAlienExtensionNode.
Also removed angle brackets around Alien title as the inspector
already has an angle bracket icon, and a '<' close button.
Change-Id: Ice8c5d73ed621f8e585b5f372788666f8c5aeb50
MWMath and other simple extensions all behave in a similar way, e.g.
<tagname>Foreign syntax</tagname>.
This creates a base class that should make supporting such extensions,
and editing their contents in a plain text box, very simple.
Change-Id: Icc0acb33fe32704f71dacb552d9dfa3142eaef2b
