[FIX] mail: various improvements/fixes

- display appropriate message when no results are found in a search
- don't display 'you have been invited' notif when creating private channel
- correctly join when a user was invited in a public channel
- display a message when a user join a channel through an invitation
- don't display subject for message of type notification (still a
  mystery why it happens in test.odoo.com for channel of type mailing)
- better heuristic on when to display message subject
- tweak sidebar text color (slightly whiter)
- add ... to the placeholder of the text area in the composer
- invert send and icons for attach/smiley in composer
- don't display 'read less' on expanded messages
- exclude livechat channels from channel mention suggestions

1 files changed, 1 insertions, 1 deletions

diff --git a/addons/mail/static/src/js/thread.js b/addons/mail/static/src/js/thread.js
index 1f2404dfe47..a1f8fc8a076 100644
--- a/addons/mail/static/src/js/thread.js
+++ b/addons/mail/static/src/js/thread.js
@@ -77,7 +77,7 @@ var Thread = Widget.extend({
 
         this.$el.html(QWeb.render('mail.ChatThread', {
             messages: msgs,
-            options: _.extend({}, this.options, options),
+            options: options,
             ORDER: ORDER,
         }));
     },