Send notification emails to the "project", and put people in Cc

This fixes email threading in Mail.app, that doesn't like when a thread
doesn't have stable recipients.

For instance, here is a possible sender-recipient combinations before:

From: A
To: Me
New issue

From: B
To: Me
Reply on new issue

From: A
To: Me
Another reply

Mail.app doesn't see B as a participant to the original email thread,
and decides to break the thread: it will group all messages from A
together, and separately all messages from B.

This commit makes the thread look like this:

From: A
To: gitlab/project
Cc: Me
New issue

From: B
To: gitlab/project
Cc: Me
Reply on new issue

From: A
To: gitlab/project
Cc: Me
Another reply

Mail.app sees a common recipient, and group the thread correctly.

1 files changed, 4 insertions, 4 deletions

diff --git a/spec/mailers/notify_spec.rb b/spec/mailers/notify_spec.rb
index 547268d44f0..6725e350898 100644
--- a/spec/mailers/notify_spec.rb
+++ b/spec/mailers/notify_spec.rb
@@ -10,7 +10,7 @@ describe Notify do
 
   shared_examples 'a multiple recipients email' do
     it 'is sent to the given recipient' do
-      should deliver_to recipient.email
+      should cc_to recipient.email
     end
   end
 
@@ -141,7 +141,7 @@ describe Notify do
         end
 
         it 'is sent to the assignee' do
-          should deliver_to assignee.email
+          should cc_to assignee.email
         end
       end
 
@@ -394,7 +394,7 @@ describe Notify do
         end
 
         it 'is sent to the given recipient' do
-          should deliver_to recipient.email
+          should cc_to recipient.email
         end
 
         it 'contains the message from the note' do
@@ -538,7 +538,7 @@ describe Notify do
     end
 
     it 'is sent to recipient' do
-      should deliver_to 'devs@company.name'
+      should cc_to 'devs@company.name'
     end
 
     it 'has the correct subject' do