Fix onServiceDisconnected not called

mobile/src/main/java/be/mygod/vpnhotspot/util/Utils.kt

@@ -1,9 +1,6 @@
 package be.mygod.vpnhotspot.util
 
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
+import android.content.*
 import android.databinding.BindingAdapter
 import android.support.annotation.DrawableRes
 import android.util.Log
@@ -53,3 +50,8 @@ fun thread(name: String? = null, start: Boolean = true, isDaemon: Boolean = fals
     if (start) thread.start()
     return thread
 }
+
+fun Context.stopAndUnbind(connection: ServiceConnection) {
+    connection.onServiceDisconnected(null)
+    unbindService(connection)
+}