initial add for recycler view implementation with headers (WIP)

src/com/owncloud/android/ui/activity/FolderSyncActivity.java

@@ -28,6 +28,8 @@ import android.os.Handler;
 import android.support.v7.widget.GridLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.util.Log;
+import android.support.v7.widget.GridLayoutManager;
+import android.support.v7.widget.RecyclerView;
 import android.view.MenuItem;
 import android.view.View;
 
@@ -39,6 +41,7 @@ import com.owncloud.android.ui.adapter.FolderSyncAdapter;
 
 import java.util.List;
 import java.util.TimerTask;
+import com.owncloud.android.ui.adapter.FolderSyncAdapter;
 
 /**
  * Activity displaying all auto-synced folders and/or instant upload media folders.

src/com/owncloud/android/ui/adapter/FolderSyncAdapter.java

@@ -32,17 +32,10 @@ import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
-import android.widget.Toast;
 
 import com.afollestad.sectionedrecyclerview.SectionedRecyclerViewAdapter;
 import com.owncloud.android.R;
-import com.owncloud.android.datamodel.MediaFolder;
-import com.owncloud.android.datamodel.ThumbnailsCacheManager;
-import com.owncloud.android.lib.common.utils.Log_OC;
-import com.owncloud.android.utils.BitmapUtils;
-import com.owncloud.android.utils.MimetypeIconUtil;
 
-import java.io.File;
 import java.util.ArrayList;
 import java.util.List;