Problem was per CR comment https://www.mediawiki.org/wiki/Special:Code/MediaWiki/104671#c26836 -- parameter count check changed in upstream jquery.bind(), causing the way we passed params to break if the optional 'data' parameter was left out.
Added QUnit test cases for jquery.delayedBind() with and without the optional 'data' parameter.
Undoes r104671 since the issue it was working around is fixed.
* Mostly whitespace in callers: $('foo').bar(baz,quux) => $( 'foo' ).bar( baz, quux )
* Also several occurrences of mixes spaces and tabs in the indention in front of a line, converted to tabs.
* And double spaces -> single spaces at random.
* Change remove() to detach() so .data() isn't lost
* Be more careful using the parent's .data() in addData()
* Change ele (which mysteriously isn't available in the closure) to this, they're the same anyway
