Fix a memory leak in QFseventsFileSystemWatcherEngine

Add a missing NSAutoReleasePool

Task-number: QTBUG-38637
Change-Id: Ib69d92b6e9c4327cbb74f7814a45773bfc2ee526
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
fingerpaint example: be sensitive to pressure only when supported

Fix fingerpaint example for platforms that don't support touch device
area and pressure by setting default size of drawn ellipse.

Change-Id: I884c688aa8ef98debf24876dbefaa4cff43a86a2
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>