Make sure that BaseWorker deletes the thread when is finished.

Implemented ClientManager so it can manage the usb and wireless threads.
Impelmented better mutex logic on CmaClient.
Execute the cma events in a different thread so the event listener is
available.
Code refactoring.
Fix memory leaks in threads.
Updated readme.

utils.h

@@ -24,21 +24,25 @@
 #include <QString>
 #include <QThread>
 
-extern "C" {
 #include <vitamtp.h>
-}
 
 // Qt4 doesn't have public methods for Thread::*sleep
 #if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
-    typedef QThread Sleeper;
+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); }
-    };
+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);