Update notes for submitted changes

* [BUGFIX] Clearing cache from toolbar fails in IE8
Update notes for submitted changes

* [BUGFIX] Clearing cache from toolbar fails in IE8
Update notes for submitted changes

* [BUGFIX] Clearing cache from toolbar fails in IE8
Update notes for submitted changes

* [BUGFIX] Clearing cache from toolbar fails in IE8
Update notes for submitted changes

* [TASK] Flatten row-headers