Refactor code to be possible set a specific sender of the event

bt5/erp5_crm/SkinTemplateItem/portal_skins/erp5_crm/Base_addEvent.xml

@@ -67,9 +67,9 @@ portal_entity_type_list = portal.getPortalEntityTypeList()\n
 logged_in_user_value = portal.ERP5Site_getAuthenticatedMemberPersonValue()\n
 start_date = DateTime()\n
 \n
-person = None\n
+person = source\n
 organisation = None\n
-if logged_in_user_value is not None:\n
+if logged_in_user_value is not None and person is None:\n
   person = logged_in_user_value.getRelativeUrl()\n
   organisation = logged_in_user_value.getSubordination()\n
 \n
@@ -139,7 +139,7 @@ event.Base_redirect(keep_items={\'portal_status_message\': message})\n
         </item>
         <item>
             <key> <string>_params</string> </key>
-            <value> <string>title, direction, portal_type, resource, text_content=None, notification_message=None, batch_mode=False, keep_draft=False, follow_up=None, **kw</string> </value>
+            <value> <string>title, direction, portal_type, resource, text_content=None, notification_message=None, batch_mode=False, keep_draft=False, follow_up=None, source=None, **kw</string> </value>
         </item>
         <item>
             <key> <string>id</string> </key>

bt5/erp5_crm/SkinTemplateItem/portal_skins/erp5_crm/Entity_createEventFromDefaultEventPath.xml

@@ -78,10 +78,8 @@ event = context.Base_addEvent(title=\'\',\n
   notification_message=resource_reference,\n
   keep_draft=keep_draft,\n
   follow_up=follow_up,\n
+  source=source,\n
   batch_mode=True)\n
-\n
-if event.getSource() is None:\n
-  event.setSource(source)\n
 </string> </value>
         </item>
         <item>