New polling logic for LAN (and WAN). #252

Same exponential backoff approach as Bluetooth.

briar-android/src/org/briarproject/plugins/AndroidPluginsModule.java

@@ -46,7 +46,7 @@ public class AndroidPluginsModule extends PluginsModule {
 		DuplexPluginFactory tor = new TorPluginFactory(ioExecutor, appContext,
 				locationUtils, eventBus);
 		DuplexPluginFactory lan = new AndroidLanTcpPluginFactory(ioExecutor,
-				appContext);
+				backoffFactory, appContext);
 		final Collection<DuplexPluginFactory> factories =
 				Arrays.asList(bluetooth, tor, lan);
 		return new DuplexPluginConfig() {