Contact picker: add search icon & hide searchview

Hide/unhide the SearchView when you click a seach menu item.
This is the first and more important step for b/16190113.

In a later CL, I might remove the SearchView and replace it
with the custom actionbar view created by dialer & used
in PeopleActivity.

Also merged JoinContactActivity into ContactSelectionActivity.

Bug: 16190113
Change-Id: I04bf7d22dffbf7f104362b17c9064cb386a01abe
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 69d211e..1175fe7 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -176,6 +176,11 @@
                 <data android:mimeType="vnd.android.cursor.item/postal-address_v2" />
                 <data android:mimeType="vnd.android.cursor.item/postal-address" />
             </intent-filter>
+
+            <intent-filter>
+                <action android:name="com.android.contacts.action.JOIN_CONTACT" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
         </activity>
 
         <!-- Backwards compatibility: somebody may have hard coded this activity name -->
@@ -195,17 +200,6 @@
             android:exported="true"
         />
 
-        <!-- An activity for joining contacts -->
-        <activity android:name=".activities.JoinContactActivity"
-            android:theme="@style/JoinContactActivityTheme"
-            android:clearTaskOnLaunch="true"
-        >
-            <intent-filter>
-                <action android:name="com.android.contacts.action.JOIN_CONTACT" />
-                <category android:name="android.intent.category.DEFAULT" />
-            </intent-filter>
-        </activity>
-
         <!-- Used to set options -->
         <activity
             android:name=".preference.ContactsPreferenceActivity"