Reimplemented broadcaster so it can send 503 when a connection is in

place.
Removed qcma/cmaserver class and reimplemented them in cmaclient.
Make sure that the scanned files are sorted by filename.
Implement filters so the database doesn't pick up unsupported formats.
Implement album cover display for album listing in the vita.
Fixed bug with streaming of pictures in wireless mode.
Some code refactoring.

cmabroadcast.h

@@ -0,0 +1,56 @@
+/*
+ *  QCMA: Cross-platform content manager assistant for the PS Vita
+ *
+ *  Copyright (C) 2013  Codestation
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef CMABROADCAST_H
+#define CMABROADCAST_H
+
+#include <QMutex>
+#include <QObject>
+#include <QUdpSocket>
+
+#define QCMA_REQUEST_PORT 9309
+
+class CmaBroadcast : public QObject
+{
+    Q_OBJECT
+public:
+    explicit CmaBroadcast(QObject *parent = 0);
+    
+private:
+    void replyBroadcast(const QByteArray &datagram);
+
+    QMutex mutex;
+    QString uuid;
+    QString reply;
+    QString hostname;
+    QUdpSocket *socket;
+    static const QString broadcast_reply;
+    static const char *broadcast_query;
+    static const char *broadcast_ok;
+    static const char *broadcast_unavailable;
+
+public slots:
+    void setAvailable();
+    void setUnavailable();
+
+private slots:
+    void readPendingDatagrams();
+};
+
+#endif // CMABROADCAST_H