Nested editor terminal drag fix

[rrlevering]

I'd advise changing Terminal.js:251 to something like:

} while ( YAHOO.util.Dom.hasClass(obj, "yui-layout-doc") );

or some other more elegant way to check the outermost element of the editor. Otherwise if you nest the editor in some other structure this position calculation is wrong.

[rrlevering]

In fact, the loop itself is incorrect in that it does the offsetParent jump twice in a row. I think you just get lucky with the DOM structure.