public boolean addCacheArtefactsFromNotes(@Nullable final String previousAllUserNotes) {
        return addCacheArtefactsFromText(getAllUserNotes(), false, CgeoApplication.getInstance().getString(R.string.cache_personal_note), false, previousAllUserNotes);
    }
Detect cache artefacts (waypoints+variables) in the user's notes (cache + waypoints) and add them to user-defined waypoints/variables.
@param previousAllUserNotes if given, then a parse of previous notes is used to help in deciding which values potentially to overwrite
main/src/main/java/cgeo/geocaching/models/Geocache.java