Made mainactivity 'exit' menu function the same as mainactivity2 for consistency.

app/src/main/AndroidManifest.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
-    android:versionCode="135"
-    android:versionName="4.2.1">
+    android:versionCode="136"
+    android:versionName="4.2.2">
     <!-- android:allowBackup="false" -->
     <uses-permission android:name="android.permission.BLUETOOTH" />
     <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

app/src/main/java/uk/org/openseizuredetector/MainActivity.java

@@ -282,6 +282,8 @@ public class MainActivity extends AppCompatActivity {
                     Log.i(TAG, "Stopping Server");
                     mUtil.unbindFromServer(getApplicationContext(), mConnection);
                     stopServer();
+                    // we exit the activity when the server is stopped to make it consistent with MainActivity2
+                    finish();
                 } else {
                     Log.i(TAG, "Starting Server");
                     startServer();