minor bug fixes

Praktikum/VINF_MaerklinControl/bin/.gitignore

...MaerklinControl/bin/gui/MainApp$EstablishConnection.class

...MaerklinControl/bin/gui/MainApp$UpdateFunctionality.class

...ikum/VINF_MaerklinControl/bin/server/MaerklinServer.class

Praktikum/VINF_MaerklinControl/bin/server/UDPListener.class

Praktikum/VINF_MaerklinControl/src/gui/MainApp.java

...tikum/VINF_MaerklinControl/src/server/MaerklinServer.java

Praktikum/VINF_MaerklinControl/src/server/UDPListener.java