UX cleanups.

Visually separate directory background from sidebar.
Lower shadows so the "real" effect isn't so prominent.

Hitchhikders:
Consolidate bool values in config.xml files (were in dimens.xml).
Add missing supportsRecents & supportsSearch methods
    to RootInfo.
Rename RecentLoader to RecentsLoader so it doesn't defy
    searching for "Recents" string.
Move Downloads below the divider.

Change-Id: I06c76e26ec6df6541860a1448865c67ed953ed43
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 5adb165..9fc8a73 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -17,37 +17,24 @@
 <resources>
     <dimen name="grid_container_padding">10dp</dimen>
     <dimen name="list_container_padding">0dp</dimen>
-
     <dimen name="icon_size">40dp</dimen>
     <dimen name="root_icon_size">24dp</dimen>
     <dimen name="root_icon_margin">0dp</dimen>
     <dimen name="check_icon_size">30dp</dimen>
-
     <dimen name="list_item_thumbnail_size">40dp</dimen>
     <dimen name="grid_item_icon_size">30dp</dimen>
-
     <dimen name="progress_bar_height">4dp</dimen>
-
     <dimen name="grid_width">152dp</dimen>
     <dimen name="grid_height">176dp</dimen>
-
     <dimen name="grid_item_width">152dp</dimen>
     <dimen name="grid_item_height">176dp</dimen>
     <dimen name="grid_item_margin">4dp</dimen>
-
     <dimen name="grid_padding_horiz">4dp</dimen>
     <dimen name="grid_padding_vert">4dp</dimen>
-
     <dimen name="list_item_height">72dp</dimen>
     <dimen name="list_item_padding">16dp</dimen>
-
     <dimen name="list_divider_inset">72dp</dimen>
-    <bool name="list_divider_inset_left">true</bool>
-
-    <bool name="always_show_summary">false</bool>
-
     <dimen name="dir_elevation">8dp</dimen>
-
     <dimen name="drag_shadow_size">120dp</dimen>
-
+    <dimen name="grid_item_elevation">2dp</dimen>
 </resources>