jQuery.each(nodeList, ...)

jQuery.each(nodeList, ...)

Now that jQuery.makeArray(nodeList) is supported correctly, maybe it
is wanted to make that also for jQuery.each, jQuery.map and
jQuery.grep.
There are mainly two reasons why I think it is worth of consideration:
1. $.each(nodeList) is already possible and I suppose that there are
individuals that are considering that action legal because NodeLists
are array like things too. Unfortunately it is not always true in IE
and Opera where length expando can be overwrited.
2. Using $.each, $.map and $.grep directly with NodeLists can be still
useful, not only for optimizing jQuery itself.
I made a patch that would fix this
http://github.com/rkatic/jquery/commit/7203092c23d5ddb623495f9145d2dab3edf1c529
If this change is welcome, than I will open a ticket...
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