Adding and removing some icons

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2907 44740490-163a-0410-bde0-09ae8108e29a

modules/discojuice/www/discojuice/images/LICENCE.txt

 target.png
+
 http://www.iconfinder.com/icondetails/53875/32/goal_target_icon
 Creative Commons (Unported 3.0) http://creativecommons.org/licenses/by/3.0/
 
 
 
+error.png
+arrowfam.png
+
+Fam fam Silk icons
+http://www.famfamfam.com/lab/icons/silk/
+Creative Commons Attribution 3.0 License
+