cut & copy don't work on IE

(issue already discussed by email, adding here in case it helps tracking. some new info)

Issue: cannot cut or copy selected editor text in Internet Explorer - nothing happens.
'cut' and 'copy are greyed out in the context menu, as well as in the Edit menu, implying the browser is not aware of a current text selection.
Paste from clipboard does work.

tested on IE8 and IE9

As we understand it, Ace doesn't expect to explicitly handle the ctrl+c and ctrl+x keystrokes, instead leaving them up to the browser to handle, and only intervening after the fact in the onCut and onCopy methods of textinput.js. However placing breakpoints in these functions show these code paths are never taken.

So one theory is that IE somehow isn't recognising the current selection - we assume this happens in the hidden textarea field?

[fjakobs]

Copy and cut did never work. I have found a solution for this, which has already landed in master.