Move ManageAccountsSettings into Settings.

- Add activity-alias for the Activity.
- Copy the Activity from AccountsAndSyncSettings.
- Fragmentize ManageAccountsSettings.
- Remove dependency toward AccountPreferenceBase, which is
  used in AccountsAndSyncSettings widely.
- Add missing implementation derived from AccountPrefernceBase.
- Copy dependent drawables.
- Copy dependent xmls
- Copy AccountPrefernce.java.
- Copy strings, adding CHAR LIMIT.
- Remove the logic which remove the preference when its destination
  Activity is missing. We already have the destination as
  Fragment, and it never disappear.

Change-Id: Id41c63d7064aebeaae31bcd84bf4fd20a5636dfe

src/com/android/settings/Utils.java

@@ -16,14 +16,12 @@
 
 package com.android.settings;
 
-import java.util.List;
-
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
 import android.content.res.Resources.NotFoundException;
 import android.graphics.drawable.Drawable;
@@ -33,6 +31,9 @@ import android.preference.Preference;
 import android.preference.PreferenceGroup;
 import android.telephony.TelephonyManager;
 import android.text.TextUtils;
+import android.util.Log;
+
+import java.util.List;
 
 public class Utils {