Build IFW with 4.8.5 + patches

Build the installer framework with Qt 4.8.5 + patches. This should
fix the wrong font problem on OS X Mavericks

Task-number: QTBUG-32789
Change-Id: I160603d107f50eae45b16a914f102fc11f17c66f
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
add flags makeDocs and collectDocs, handling logic

Change-Id: I07a7399e083922dc8e2c1ad51191f6ae0c8c06dc
Reviewed-by: Matti Paaso <matti.paaso@digia.com>
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>