Support unbind(".namespace")

[joern]

Plugin code for unbinding plugins could be simplified a lot by supporting a this syntax:

$(...).unbind(".namespace")

That way a plugin author can avoid to reiterate all event names when he already namespaced them all anyway.

Currently the check for events[type] in event.js on line 129 prevents removal of "namespace-only events".

[scott.gonzal]

Fixed in [4601].

[joern]

And [4649].