public void mergeLogEntry(final List<LogEntry> newLogs) {
        for (final LogEntry newLog : newLogs) {
            if (!logs.contains(newLog)) {
                logs.add(newLog);
            }
        }
        Collections.sort(logs, LogEntry.DESCENDING_DATE_COMPARATOR);
    }
Merge another logEntry list into current logs list.
No duplicates.
LogEntry are then sorted by date.

@param newLogs to merge
main/src/main/java/cgeo/geocaching/models/Trackable.java