Moved conection logic from Qcma/ListenerWorker to CmaServer/CmaClient.

Added tray icon.
Quit now really quits the application.

utils.h

@@ -21,6 +21,20 @@
 #define UTILS_H
 
 #include <QString>
+#include <QThread>
+
+// Qt4 doesn't have public methods for Thread::*sleep
+#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
+    typedef QThread Sleeper;
+#else
+    class Sleeper : QThread
+    {
+    public:
+        static void sleep(unsigned long secs) { QThread::sleep(secs); }
+        static void msleep(unsigned long msecs) { QThread::msleep(msecs); }
+        static void usleep(unsigned long usecs) { QThread::usleep(usecs); }
+    };
+#endif
 
 bool removeRecursively(const QString &dirName);
 bool getDiskSpace(const QString &dir, quint64 *free, quint64 *total);