Open group fragment and duplicates fragment from PeopleActivity

* Also handle some side nav menu logic

Bug: 30944495

Test: manual - navigate between fragments, rotation, press Back/Home/Recent
               button, search, multi-select, modify group members,
               add/delete groups.

Change-Id: I4feeed89557a5c07852a1e2d2a39306cfa59c918
diff --git a/res/layout/people_activity.xml b/res/layout/people_activity.xml
index 46f0976..8810af0 100644
--- a/res/layout/people_activity.xml
+++ b/res/layout/people_activity.xml
@@ -20,35 +20,10 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent" >
 
-    <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-                    android:id="@+id/list_container"
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent">
-
-        <FrameLayout
-            android:id="@+id/contacts_view"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_below="@id/toolbar_parent">
-            <FrameLayout
-                android:id="@+id/contacts_list_container"
-                android:layout_height="match_parent"
-                android:layout_width="match_parent" />
-        </FrameLayout>
-
-        <FrameLayout
-            android:id="@+id/contacts_unavailable_view"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:layout_below="@id/toolbar_parent"
-            android:visibility="gone">
-            <FrameLayout
-                android:id="@+id/contacts_unavailable_container"
-                android:layout_height="match_parent"
-                android:layout_width="match_parent" />
-        </FrameLayout>
-
-    </RelativeLayout>
+    <FrameLayout
+        android:id="@+id/contacts_list_container"
+        android:layout_height="match_parent"
+        android:layout_width="match_parent" />
 
     <include layout="@layout/floating_action_button" />
 </android.support.design.widget.CoordinatorLayout>