fix navscreen orientation

    handle configuration change in navscreen
    capture actual screen for tabs
    size tabs correctly

Change-Id: I20ff72bdcab13678cdba4c55849bd5ff16cb6568
diff --git a/res/layout/custom_screen.xml b/res/layout/custom_screen.xml
index 525f30c..2105501 100644
--- a/res/layout/custom_screen.xml
+++ b/res/layout/custom_screen.xml
@@ -37,3 +37,4 @@
         />
     </LinearLayout>
 </FrameLayout>
+
diff --git a/res/layout/nav_tab_view.xml b/res/layout/nav_tab_view.xml
index 439eb89..f657f4f 100644
--- a/res/layout/nav_tab_view.xml
+++ b/res/layout/nav_tab_view.xml
@@ -18,7 +18,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/tab_view"
     android:layout_width="wrap_content"
-    android:layout_height="wrap_content"
+    android:layout_height="match_parent"
     android:orientation="vertical"
     android:padding="4dip"
     android:focusable="false"