Bag o' QC UX improvements

UX and I spent a couple days trying out different tweaks to QC.
This is the result.

Main Changes:
-landscape
-better blending, and interpolation of blended values
-different scrim animation length
-updated colors & dimensions
-scaling of title TextView during scroll
-EdgeEffect color is now dynamic
-Drop shadow size

Bug: 15725269
Change-Id: Ib992b41692704d3d932527cef715693ed7a7f4cc
diff --git a/res/values/colors.xml b/res/values/colors.xml
index 962fe97..89f39b8 100644
--- a/res/values/colors.xml
+++ b/res/values/colors.xml
@@ -39,16 +39,16 @@
     <color name="contacts_accent_color">#00acc1</color>
 
     <!-- Color of the separator between entries in an ExpandingEntryCardView -->
-    <color name="expanding_entry_card_item_separator_color">#eeeeee</color>
+    <color name="expanding_entry_card_item_separator_color">#e4e4e4</color>
 
     <!-- Color of the text on an ExpandingEntryCard button -->
     <color name="expanding_entry_card_button_text_color">@android:color/black</color>
 
     <!-- Background color for an ExpandingEntryCard -->
-    <color name="expanding_entry_card_background_color">#f7f8f9</color>
+    <color name="expanding_entry_card_background_color">#ffffff</color>
 
     <!-- Color of the margin for cards -->
-    <color name="card_margin_color">#ffbbbbbb</color>
+    <color name="card_margin_color">#f4f4f4</color>
 
     <color name="call_arrow_green">#2aad6f</color>
     <color name="call_arrow_red">#ff2e58</color>