[IMP] point_of_sale: add OpenChatter notification after module installation

bzr revid: rco@openerp.com-20120725112900-bv2eixl6ojc4w28h

addons/point_of_sale/point_of_sale_data.xml

@@ -1,12 +1,26 @@
 <?xml version="1.0" ?>
 <openerp>
     <data>
-
-
         <record model="pos.config" id="pos_config_main">
             <field name="name">Main PoS</field>
         </record>
+    </data>
 
+    <data noupdate="1">
+        <!-- notify all employees of module installation -->
+        <function model="mail.group" name="message_append_note">
+            <!-- ids, subject, body, parent_id=False, type='notification', content_subtype='html' -->
+            <value eval="[ref('mail.group_all_employees')]"/>
+            <value>Module Point of Sale has been installed</value>
+            <value>Encode sale orders, register payments, compute money to return,
+                create invoices, and manage refunds of former sales through a
+                specific, web-based, user interface.
+
+                Simply click on the top menu "Point of Sale" to launch its
+                interface.  You can configure your point of sale and perform
+                backend operations in the menu "PoS Backend".
+            </value>
+        </function>
     </data>
 </openerp>