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.

main.cpp

@@ -17,6 +17,10 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifndef Q_OS_WIN32
+#include <signal.h>
+#endif
+
 #include <QDebug>
 #include <QThread>
 
@@ -31,8 +35,8 @@ void noMessageOutput(QtMsgType type, const QMessageLogContext &, const QString &
 void noMessageOutput(QtMsgType type, const char *msg)
 {
 #endif
-     Q_UNUSED(type);
-     Q_UNUSED(msg);
+    Q_UNUSED(type);
+    Q_UNUSED(msg);
 }
 
 int main(int argc, char *argv[])
@@ -43,6 +47,13 @@ int main(int argc, char *argv[])
 
     SingleApplication app(argc, argv);
 
+#ifndef Q_OS_WIN32
+    // FIXME: libmtp sends SIGPIPE if a socket write fails crashing the whole app
+    // the proper fix is to libmtp to handle the cancel properly or ignoring
+    // SIGPIPE on the socket
+    signal(SIGPIPE, SIG_IGN);
+#endif
+
     if(!app.arguments().contains("--with-debug")) {
         VitaMTP_Set_Logging(VitaMTP_NONE);
 #if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)