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
When Rockbox Utility is started for the first time, a new version is started or
the user selected to do so on startup a changelog window is shown.
Change-Id: Ic223e092a09d31ccbbfcd9b973355225cac27632
