fixed #997 by turning cancel link into a reset button

app/views/conversations/_show.haml

@@ -34,4 +34,4 @@
           = message.text_area :text, :rows => 5
           .right
             = message.submit t('.reply').capitalize, :class => 'button'
-            = link_to t('cancel'), '#'
+            = message.submit t('cancel'), :name => "reset", :id => "reset_button", :type => "reset", :class => "button"

public/stylesheets/sass/application.sass

@@ -755,7 +755,7 @@ a.paginate, #infscr-loading
   h5
     :color #ccc
 
-input:not([type='submit']),
+input:not([type='submit']):not([type='reset']),
 textarea
   @include border-radius(3px)