* #36914: New navigation working

This commit impacts the whole structure app, because we now have
nested Fragments. To keep retro-compatibility, we switched from normal
Fragment to Fragment from the support library.
diff --git a/src/org/sflphone/adapters/SectionsPagerAdapter.java b/src/org/sflphone/adapters/SectionsPagerAdapter.java
index dc68879..0fdb442 100644
--- a/src/org/sflphone/adapters/SectionsPagerAdapter.java
+++ b/src/org/sflphone/adapters/SectionsPagerAdapter.java
@@ -1,23 +1,52 @@
+/*
+ *  Copyright (C) 2004-2013 Savoir-Faire Linux Inc.
+ *
+ *  Author: Alexandre Lision <alexandre.lision@savoirfairelinux.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *  Additional permission under GNU GPL version 3 section 7:
+ *
+ *  If you modify this program, or any covered work, by linking or
+ *  combining it with the OpenSSL project's OpenSSL library (or a
+ *  modified version of that library), containing parts covered by the
+ *  terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
+ *  grants you additional permission to convey the resulting work.
+ *  Corresponding Source for a non-source form of such a combination
+ *  shall include the source code for the parts of OpenSSL used as well
+ *  as that of the covered work.
+ */
+
 package org.sflphone.adapters;
 
 import java.util.ArrayList;
 import java.util.Locale;
 
 import org.sflphone.R;
+import org.sflphone.fragments.CallListFragment;
 import org.sflphone.fragments.DialingFragment;
 import org.sflphone.fragments.HistoryFragment;
-import org.sflphone.fragments.CallListFragment;
 import org.sflphone.views.PagerSlidingTabStrip;
 
-import android.app.Fragment;
-import android.app.FragmentManager;
 import android.content.Context;
 import android.os.RemoteException;
-import android.support.v13.app.FragmentStatePagerAdapter;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
 import android.util.Log;
 
-
-public class SectionsPagerAdapter extends FragmentStatePagerAdapter implements PagerSlidingTabStrip.IconTabProvider {
+public class SectionsPagerAdapter extends android.support.v4.app.FragmentStatePagerAdapter implements PagerSlidingTabStrip.IconTabProvider {
 
     private static final String TAG = SectionsPagerAdapter.class.getSimpleName();
     Context mContext;