Allow for NxM layout and in-place rotation of items on homescreen.

Currently, rotation is disabled as designs are still in flux, but the NxM grid is enabled (8x4).

Change-Id: I0026f88c674719e3d67de6d6d481d2d4cd606362

src/com/android/launcher2/UserFolder.java

@@ -3,10 +3,8 @@ package com.android.launcher2;
 import android.content.Context;
 import android.graphics.Rect;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.widget.ArrayAdapter;
 
 import com.android.launcher.R;