title: RecyclerView is missing in android.support.v7.widget
body: <p>F.i. <code>Support7Demos</code> uses <code>android.support.v7.widget.RecyclerView</code>, but this class is missing in the v7 compatibility lib and it's missing in the android reference <a href="http://developer.android.com/reference/android/support/v7/widget/package-summary.html" rel="nofollow">http://developer.android.com/reference/android/support/v7/widget/package-summary.html</a></p>