Replace qetsingleapplication by singleApplication.

See : https://github.com/itay-grudev/SingleApplication


git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@5481 bfdf4180-ca20-0410-9c96-a3a8aa849046

SingleApplication/examples/basic/main.cpp

@@ -0,0 +1,9 @@
+#include <singleapplication.h>
+
+int main(int argc, char *argv[])
+{
+    // Allow secondary instances
+    SingleApplication app( argc, argv );
+
+    return app.exec();
+}