smart list: add contextual menu

Add next options for contacts in smart list:
- video call
- audio call
- clear conversation
- block contact
- add contact

Change-Id: I9e668f0cc0848d35e0aad31d0efd16d94a78d916
Reviewed-by: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>
diff --git a/ui/Base.lproj/Localizable.strings b/ui/Base.lproj/Localizable.strings
index 4c2562c..8a033b5 100644
--- a/ui/Base.lproj/Localizable.strings
+++ b/ui/Base.lproj/Localizable.strings
@@ -7,6 +7,18 @@
 /* Contextual menu action */
 "Add to contacts" = "Add to contacts";
 
+/* Contextual menu action */
+"Place video call" = "Place video call";
+
+/* Contextual menu action */
+"Place audio call" = "Place audio call";
+
+/* Contextual menu action */
+"Clear conversation" = "Clear conversation";
+
+/* Contextual menu action */
+"Block contact" = "Block contact";
+
 /* Text shown to the user */
 "Alias : " = "Alias : ";