Don't crash if example tracklogs can't be copied
Tracklogs in the GPX format don't need to be executable :)

Actually, no tracklogs need to be executable! :D
Fix a typo causing syntax error
Make the Qt 5 GUI work with qrc on Android

Add the qrc root to Python import path and bump required version
of PyOtherSide to 1.3 to make sure it has qrc support.

Also set the main window visible property to true and set some
default size. Without these two window content would not be shown
properly on Android when launched with QQmlApplicationEngine.

Without visible == true, nothing would be shown on the screen and
without default size the screen would just flicker without showing
anything. Note that even when setting the main window size to
640x480 it will still automatically resize to fullscreen on Android.