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/AndroidManifest.xml b/AndroidManifest.xml
index 6f146f0..cbb16b9 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -137,6 +137,13 @@
                 <category android:name="android.intent.category.DEFAULT" />
                 <data android:mimeType="vnd.android.cursor.dir/person" />
                 <data android:mimeType="vnd.android.cursor.dir/contact" />
+                <data android:mimeType="vnd.android.cursor.item/group" />
+            </intent-filter>
+
+            <intent-filter>
+                <action android:name="android.intent.action.EDIT" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="vnd.android.cursor.item/group" />
             </intent-filter>
 
             <intent-filter>
@@ -268,23 +275,6 @@
             </intent-filter>
         </activity>
 
-        <!-- Displays the members of a group in a list -->
-        <activity android:name=".activities.GroupMembersActivity"
-            android:theme="@style/PeopleActivityTheme">
-
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:mimeType="vnd.android.cursor.item/group" />
-            </intent-filter>
-
-            <intent-filter>
-                <action android:name="android.intent.action.EDIT" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:mimeType="vnd.android.cursor.item/group" />
-            </intent-filter>
-        </activity>
-
         <activity
             android:name=".quickcontact.QuickContactActivity"
             android:theme="@style/Theme.QuickContact"