Pass Qt::ImQueryInput instead of Qt::CursorRectangle in QSgItem::updateMicroFocus...

Pass Qt::ImQueryInput instead of Qt::CursorRectangle in QSgItem::updateMicroFocus function

QPlatformInputContext::update() function takes QInputMethodQueries flag as a parameter.
When cursor rectangle changes many input method query attributes like
cursor rectangle, cursor position, surrounding text, current selection and a
position change as well. New composite query ImQueryInput encapsulates this.

Change-Id: I83b17507f22fcbec0d8ed50588c67794d62f9495
Reviewed-on: http://codereview.qt-project.org/4741
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>