Use markerb for emails

* Add markerb to the Gemfile
* Update mailer classes to send multipart text+html emails
* Simplify all email templates and convert to Markdown+ERB

This required stripping the CSS and images from the emails. All
Markdown templates are based on the original HTML version except
for the inviter, where it was much easier to work with the text
version (and the i18n contains the whole message anyway).

Gemfile

@@ -29,6 +29,7 @@ gem 'rails_admin'
 
 # mail
 
+gem 'markerb', '~> 1.0.0'
 gem 'messagebus_ruby_api', '1.0.3'
 gem 'airbrake'
 gem 'newrelic_rpm'
@@ -116,12 +117,12 @@ group :assets do
   # install Node.js or use 'therubyracer'.
   #
   # See https://github.com/sstephenson/execjs#readme for more supported runtimes
-  
+
   # gem 'therubyracer', :platform => :ruby
-  
+
   gem 'handlebars_assets'
   gem 'uglifier'
-  
+
   # asset_sync is required as needed by application.rb
   gem "asset_sync", :require => nil
 end

Gemfile.lock

@@ -263,6 +263,8 @@ GEM
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)
+    markerb (1.0.0)
+      redcarpet (>= 2.0)
     messagebus_ruby_api (1.0.3)
     mime-types (1.18)
     mini_magick (3.4)
@@ -543,6 +545,7 @@ DEPENDENCIES
   json
   jwt
   linecache (= 0.46)
+  markerb (~> 1.0.0)
   messagebus_ruby_api (= 1.0.3)
   mini_magick (= 3.4)
   mobile-fu

app/mailers/notifier.rb

@@ -30,7 +30,10 @@ def single_admin(string, recipient, opts={})
 
 
 
-    mail(default_opts)
+    mail(default_opts) do |format|
+      format.text
+      format.html
+    end
   end
 
   def invite(email, message, inviter, invitation_code, locale)
@@ -44,7 +47,10 @@ def invite(email, message, inviter, invitation_code, locale)
                  :host => AppConfig[:pod_uri].host}
 
     I18n.with_locale(locale) do
-      mail(mail_opts)
+      mail(mail_opts) do |format|
+        forat.text
+        forat.html
+      end
     end
   end
 
@@ -85,7 +91,10 @@ def send_notification(type, *args)
     @notification = NotificationMailers.const_get(type.to_s.camelize).new(*args)
 
     with_recipient_locale do
-      mail(@notification.headers)
+      mail(@notification.headers) do |format|
+        format.text
+        format.html
+      end
     end
   end
 

app/views/devise/mailer/confirmation_instructions.markerb

@@ -0,0 +1,7 @@
+<%= t('devise.mailer.welcome', :email => @resource.email) %>
+
+<%= t('.you_can_confirm') %>
+
+[<%= t('.confirm') %>][1]
+
+[1]: <%= confirmation_url(@resource, :confirmation_token => @resource.confirmation_token) %>

app/views/devise/mailer/reset_password_instructions.markerb

@@ -0,0 +1,11 @@
+<%= t('devise.mailer.hello', :email => @resource.email) %>
+
+<%= t('.someone_requested') %>
+
+[<%= t('.change') %>][1]
+
+[1]: <%= edit_password_url(@resource, :reset_password_token => @resource.reset_password_token) %>
+
+<%= t('.wont_change') %>
+
+<%= t('.ignore') %>

app/views/devise/mailer/unlock_instructions.markerb

@@ -0,0 +1,9 @@
+<%= t('devise.mailer.hello', :email => @resource.email) %>
+
+<%= t('.account_locked') %>
+
+<%= t('.click_to_unlock') %>
+
+[<%= t('.unlock') %>][1]
+
+[1]: <%= unlock_url(@resource, :unlock_token => @resource.unlock_token) %>

app/views/notifier/also_commented.markerb

@@ -0,0 +1,5 @@
+<%= comment_message(@notification.comment, :process_newlines => true) %>
+
+[<%= t('notifier.comment_on_post.reply', :name => @notification.comment.post.author.first_name) %>][1]
+
+[1]: <%= post_url(@notification.comment.post) %>

app/views/notifier/comment_on_post.markerb

@@ -0,0 +1,5 @@
+<%= comment_message(@notification.comment, :process_newlines => true) %>
+
+[<%= t('notifier.comment_on_post.reply', :name => @notification.comment.post.author.name) %>][1]
+
+[1]: <%= post_url(@notification.comment.post) %>

app/views/notifier/confirm_email.markerb

@@ -0,0 +1,5 @@
+<%= t('notifier.hello', :name => @notification.recipient.profile.first_name) %>
+
+<%= t('notifier.confirm_email.click_link', :unconfirmed_email => @notification.recipient.unconfirmed_email) %>
+
+<<%= confirm_email_url(:token => @notification.recipient.confirm_email_token) %>>