Add a menu option to trigger a device search

src/main/java/com/github/nutomic/controldlna/gui/MainActivity.java

@@ -185,6 +185,9 @@ public class MainActivity extends ActionBarActivity {
 				Intent i = new Intent(this, PreferencesActivity.class);
 				startActivity(i);
 				return true;
+			case R.id.refreshdev:
+				mServerFragment.triggerSearch();
+				return true;
 			default:
 				return super.onOptionsItemSelected(item);
 		}

src/main/java/com/github/nutomic/controldlna/gui/ServerFragment.java

@@ -429,4 +429,9 @@ public class ServerFragment extends ListFragment implements OnBackPressedListene
 		}
 	};
 
+	public void triggerSearch()
+	{
+		mUpnpService.getControlPoint().search();
+	}
+
 }

src/main/res/menu/menu.xml

@@ -3,7 +3,10 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
 
 	<item
-			android:id="@+id/preferences"
-			android:title="@string/settings_title" />
+		android:id="@+id/preferences"
+		android:title="@string/settings_title" />
+	<item
+		android:id="@+id/refreshdev"
+		android:title="@string/refresh_title" />
 
 </menu>

src/main/res/values/strings.xml

@@ -41,7 +41,10 @@
 	
 	<!-- Developer contact mail with '@', '.' replaced -->
 	<string name="contact_mail" translatable="false">controldlna%1$snutomic%2$scom</string>
-	
+
+	<!-- Title for the Refresh Devices Action-->
+	<string name="refresh_title">Refresh Devices</string>
+
 	<!-- Title for the SettingsActivity -->
 	<string name="settings_title">Preferences</string>