remove corporate address from email footer and add reference to domain of origin

app/views/notify/pipeline_failed_email.html.haml

@@ -173,4 +173,7 @@
               %a{:href => profile_notifications_url, :style => "color:#3084bb;text-decoration:none;"} Manage all notifications
               ·
               %a{:href => help_url, :style => "color:#3084bb;text-decoration:none;"} Help
-            %div GitLab, 1233 Howard St 2F, San Francisco, CA 94103, USA
+            %div
+              You're receiving this email because of your account on
+              = succeed "." do
+                %a{:href => root_url, :style => "color:#3084bb;text-decoration:none;"}= Gitlab.config.gitlab.host

app/views/notify/pipeline_failed_email.text.erb

@@ -26,5 +26,6 @@ Trace: <%= build.trace_with_state(last_lines: 10)[:text] %>
 <% end -%>
+You're receiving this email because of your account on <%= Gitlab.config.gitlab.host %>.
 Manage all notifications: <%= profile_notifications_url %>
 Help: <%= help_url %>

app/views/notify/pipeline_success_email.html.haml

@@ -150,4 +150,7 @@
               %a{:href => profile_notifications_url, :style => "color:#3084bb;text-decoration:none;"} Manage all notifications
               ·
               %a{:href => help_url, :style => "color:#3084bb;text-decoration:none;"} Help
-            %div GitLab, 1233 Howard St 2F, San Francisco, CA 94103, USA
+            %div
+              You're receiving this email because of your account on
+              = succeed "." do
+                %a{:href => root_url, :style => "color:#3084bb;text-decoration:none;"}= Gitlab.config.gitlab.host

app/views/notify/pipeline_success_email.text.erb

@@ -19,5 +19,6 @@ Commit Author: <%= commit.author.name %> ( <%= user_url(commit.author) %> )
 <% stage_count = @pipeline.stages.size -%>
 Pipeline #<%= @pipeline.id %> ( <%= namespace_project_pipeline_url(@project.namespace, @project, @pipeline.id) %> ) successfully completed <%= build_count %> <%= 'build'.pluralize(build_count) %> in <%= stage_count %> <%= 'stage'.pluralize(stage_count) %>.
+You're receiving this email because of your account on <%= Gitlab.config.gitlab.host %>.
 Manage all notifications: <%= profile_notifications_url %>
 Help: <%= help_url %>