Ignore the SIGPIPE signal as that disturbs debugging with Qt Creator.

It is questionable why this happens and if this patch really helps,
or if it might have side effects. Input appreciated :)

src/main.cpp

@@ -11,6 +11,7 @@
  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  * for more details.
  */
+#include <signal.h>
 
 #include "mirall/application.h"
 #include "mirall/theme.h"
@@ -36,6 +37,8 @@ int main(int argc, char **argv)
     Mirall::Application app(argc, argv);
     app.initialize();
 
+    signal(SIGPIPE, SIG_IGN);
+
     if( app.giveHelp() ) {
         app.showHelp();
         return 0;