Add qmodmaster and move udp app to applications

Applications/Qt-application_for_UDP_broadcast/README.md

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+# Device Finder
+
+Small application written in C++/Qt to send an UDP broadcast (port 64000) 
+
+	Where are you?v1.0
+	
+and listens to an UDP response:
+
+	XX:XX:XX:XX:XX:XX is present and my owner is YYYYYY ZZZZZZ
+	
+![Screenshot](doc/img/screenshot.png)
+
+If you want you can test it with ncat (http://nmap.org/dist/ncat-portable-5.59BETA1.zip)
+```
+ncat -u 127.0.0.1 64000
+```
+and paste strings like:
+```
+00:80:E1:00:00:42 is present and my owner is Iron Man
+```
+or
+```
+DC:A6:32:00:00:42 is present and my owner is Black Widow
+```
+or
+```
+BB:A6:32:00:00:42 is present and my owner is Super Mario
+```