add build numbers

app/helpers/application_helper.rb

@@ -42,4 +42,10 @@ module ApplicationHelper
       providers
     end
   end
+
+  def version
+    Greenlight::VERSION
+  rescue
+    'development'
+  end
 end

app/views/layouts/application.html.erb

@@ -71,7 +71,7 @@ with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
 
     <!-- Footer -->
     <div class='footer text-center'>
-      <%= t('powered_bigbluebutton_html', link: link_to('BigBlueButton', 'http://bigbluebutton.org/', target: "_blank")) %>
+      <%= t('footer_html', greenlight_link: link_to('Greenlight', 'https://github.com/bigbluebutton/greenlight', target: "_blank"), version: version, bbb_link: link_to('BigBlueButton', 'http://bigbluebutton.org/', target: "_blank")) %>
     </div>
     <!-- End of Footer -->
   </body>