- implemented reload_config jni function

- show restart alerts when config/accounts are saved

app/src/main/java/com/tutpro/baresip/Utils.java

@@ -1,6 +1,10 @@
 package com.tutpro.baresip;
 
+import android.content.Context;
+import android.content.DialogInterface;
+import android.support.v7.app.AlertDialog;
 import android.util.Log;
+import android.widget.Toast;
 
 import java.io.File;
 import java.io.FileInputStream;
@@ -52,4 +56,16 @@ public class Utils {
         }
     }
 
+    static public void alertView( Context context, String message ) {
+        AlertDialog alertDialog = new AlertDialog.Builder(context).create();
+        alertDialog.setTitle("Alert");
+        alertDialog.setMessage(message);
+        alertDialog.setButton(AlertDialog.BUTTON_NEUTRAL, "OK",
+                new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int which) {
+                        dialog.dismiss();
+                    }
+                });
+        alertDialog.show();
+    }
 }