Objectives:
* Rename this.$ to this.$element
* Rename this.$$ to this.$
* Get rid of the need to use this.frame.$$
* Rename OO.ui.Element.get$$ to OO.ui.Element.getJQuery
Changes: (using Sublime Text regex patterns)
* Replace "get$$" with "getJQuery"
* Replace "\.(\$)([^\$a-zA-Z])" with ".$element$2"
* Replace "\.(\$\$)" with ".$"
* Replace "'$$'" with "'$'"
* Set this.$ to null in constructor of OO.ui.Window
* Set this.$ to this.frame.$ in initialize method of OO.ui.Window
* Replace "\.(frame.\$)([^\$a-zA-Z])" with ".\$$2"
Bonus:
* Use this.$() in a bunch of places where $() was erroneously used
Change-Id: If3d870124ab8d10f8223532cda95c2b2b075db94
These represent <nowiki> tags. If the user doesn't edit the text inside
the nowiki, we round-trip the <span typeof="mw:Nowiki"> wrapper cleanly,
but if they do edit it, we unwrap it. This then triggers re-escaping
in Parsoid, and prevents cases where the user edits the text to no
longer need escaping but Parsoid still wraps it in <nowiki> because
of the <span typeof="mw:Nowiki"> wrapper.
In order to detect whether the contents have changed, the nowiki
annotation stores a copy of its contents. To avoid infinite recursion,
we have to exclude this attribute for hash generation.
Bug: 47678
Change-Id: I2edc46b6d87d2f91e952efcb09c0edae5166958f
