small fixes

app/assets/stylesheets/themes/blue2/application.css.scss

@@ -126,6 +126,6 @@ $box-background: white;
 
 @import 'extra';
 body {
-background: url('http://localhost:3000/stvn.jpg') fixed no-repeat;
+background: url('http://www.fet.at/stvn.jpg') fixed no-repeat;
 background-size:100%;
-}
+}

app/models/ability.rb

@@ -120,7 +120,7 @@ class Ability
     # Calendar
 
     if( user.has_role?("fetuser") || user.has_role?("fetadmin"))
-      can [:edit, :update,:new,:create], Document
+      can [:show, :edit, :update,:new,:create,:write, :write_etherpad, :read_from_etherpad, :dump_to_etherpad], Document
       can :manage, Meeting
       can :manage, Meetingtyp
     end