Change tracing from qDebug() to use cutelogger, which is available under the
LGPL2.1. This allows to automatically add filename and line number to the log,
and also provides multiple log levels.
Change-Id: I5dbdaf902ba54ea99f07ae10a07467c52fdac910
To identify the source for System Trace entries qDebug() calls usually add the
class name at the beginning. Add some missing ones and remove some trailing
spaces.
Change-Id: I3179bb206e96de8b5a1c05c0fc0958936e4513f3
