disable bonjour in regression test

because travis is not happy about it

Author: jantje

io.sloeber.core/src/io/sloeber/core/api/SerialManager.java

@@ -89,4 +89,8 @@ public static String getLineEnding(int selectionIndex) {
 	public static String[] listNetworkPorts() {
 		return NetworkDiscovery.getList();
 	}
+
+	public static void stopNetworkScanning() {
+		NetworkDiscovery.stop();
+	}
 }

io.sloeber.tests/src/io/sloeber/core/RegressionTest.java

@@ -22,6 +22,7 @@
 import io.sloeber.core.api.CodeDescriptor;
 import io.sloeber.core.api.CompileOptions;
 import io.sloeber.core.api.ConfigurationDescriptor;
+import io.sloeber.core.api.SerialManager;
 
 @SuppressWarnings("nls")
 public class RegressionTest {
@@ -34,6 +35,7 @@ public class RegressionTest {
 	@BeforeClass
 	public static void WaitForInstallerToFinish() {
 		Shared.waitForAllJobsToFinish();
+		SerialManager.stopNetworkScanning();
 		installAdditionalBoards();
 	}