Disable native capturing for IE 9 in master for v 4.1

The native capturing was disabled with change https://github.com/qooxdoo/qooxdoo/commit/ba0e027215d48115dea86a2ab973921ed50d5c43
but is missing in current qooxdoo/master

See http://bugzilla.qooxdoo.org/show_bug.cgi?id=8587