Added possibility to give feedbacks via ajax form. Closes #2

* Feedback message will send to error_recipients, configured in app_config.yml

app/views/layouts/application.haml

@@ -23,6 +23,7 @@
         %span{:style => "color:white; font-size:45%; letter-spacing: -1px;"}= Foodsoft.config[:name]
       #nav= render :partial => 'layouts/main_tabnav'
 
+    #ajax_box(style="display:none")
     #main
       #content
         - if flash[:notice]