Fixed failing tests and added deployment complete email

app/views/user_mailer/contact_details.html.haml

@@ -30,7 +30,7 @@
   %tr
     %th=_!'Key'
     %th=_!'Value'
-  - @params.each do | key, value |
+  - @params.each do |key, value|
     %tr
       %td=_!key
       %td=_!value
@@ -40,7 +40,7 @@
   %tr
     %th=_!'Key'
     %th=_!'Value'
-  - @request['env'].each do | key, value |
+  - @request['env'].each do |key, value|
     %tr
       %td=_!key
       %td=_!value

app/views/user_mailer/server_startup.html.haml

@@ -0,0 +1 @@
+%p="Deployment to #{@environment} is now complete"

app/views/workshops/_workshop_previews.html.haml

@@ -3,7 +3,7 @@
   - workshops.sort_by{ |w| w.title.downcase }.each do |w|
     - is_interested = w.interested?(current_user)
     %li{class: [is_interested ? :interested : nil]}
-      = content_tag("h#{depth}", w.title, class: :title)
+      = content_tag("h#{depth}", _!(w.title), class: :title)
       .workshop-interest
         - if w.can_show_interest?(current_user)
           = form_tag toggle_workshop_interest_path(w.conference.slug, w.id), class: 'js-xhr' do