Use m_pleaseReset more consistently

Use m_pleaseReset more consistently

Everyone had their own, and so they could conflict or be randomly
un-initialized.

Change-Id: Ife2c5d9972b881235e4d3a5e2a33979174de2fbc
Reviewed-on: http://codereview.qt-project.org/5370
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Martin Jones <martin.jones@nokia.com>