Move Java Blimp shell code to app subpackage

blimp/client/app/android/java/src/org/chromium/blimp/app/settings/AboutBlimpPreferences.java

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-package org.chromium.blimp.settings;
+package org.chromium.blimp.app.settings;
 
 import android.app.Activity;
-import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
 import android.preference.ListPreference;
 import android.preference.Preference;
 import android.preference.PreferenceFragment;
+import android.support.v7.app.AlertDialog;
 import android.text.TextUtils;
 
 import org.chromium.base.Log;
-import org.chromium.blimp.BrowserRestartActivity;
-import org.chromium.blimp.R;
-import org.chromium.blimp.preferences.PreferencesUtil;
+import org.chromium.blimp.app.BrowserRestartActivity;
+import org.chromium.blimp.app.R;
+import org.chromium.blimp.app.preferences.PreferencesUtil;
 
 /**
  * Fragment to display blimp client and engine version related info.
  */
 public class AboutBlimpPreferences extends PreferenceFragment {
     private static final String TAG = "AboutBlimp";
     public static final String EXTRA_ENGINE_IP = "engine_ip";
     public static final String EXTRA_ENGINE_VERSION = "engine_version";
 
     private static final String PREF_APPLICATION_VERSION = "application_version";
@@ skipping 92 matching lines @@
                         })
                 .create()
                 .show();
     }
 
     private void restartBrowser(Context context) {
         Intent intent = BrowserRestartActivity.createRestartIntent(context);
         context.startActivity(intent);
     }
 }