frontpage: Only show warnings about ldap & radius if those modules are enabled.
frontpage: Only show warnings about ldap & radius if those modules are enabled.

Thanks to Gordon Franke for providing this fix!

git-svn-id: a243b28a2a52d65555a829a95c8c333076d39ae1@2993 44740490-163a-0410-bde0-09ae8108e29a

sylvainmed/simplesamlphp,gtkrug/simplesamlphp,BrettMerrick/simplesamlphp,jschlyter/simplesamlphp,sylvainmed/simplesamlphp,StudentLifeMarketingAndDesign/simplesamlphp,maytechnet/simplesamlphp,grnet/simplesamlphp,cwaldbieser/simplesamlphp,StudentLifeMarketingAndDesign/simplesamlphp,madmatt/simplesamlphp,sitya/simplesamlphp,madmatt/simplesamlphp,jschlyter/simplesamlphp,ghalse/simplesamlphp,dialogik/simplesamlphp,StudentLifeMarketingAndDesign/simplesamlphp,maytechnet/simplesamlphp,BrettMerrick/simplesamlphp,dzuelke/simplesamlphp,dialogik/simplesamlphp,madmatt/simplesamlphp,cwaldbieser/simplesamlphp,girgen/simplesamlphp,gtkrug/simplesamlphp,Kunstmaan/simplesamlphp,shoaibali/simplesamlphp,gtkrug/simplesamlphp,dialogik/simplesamlphp,grnet/simplesamlphp,Kunstmaan/simplesamlphp,cwaldbieser/simplesamlphp,StudentLifeMarketingAndDesign/simplesamlphp,girgen/simplesamlphp,dnmvisser/simplesamlphp,dzuelke/simplesamlphp,simplesamlphp/simplesamlphp,shoaibali/simplesamlphp,BrettMerrick/simplesamlphp,Kunstmaan/simplesamlphp,jschlyter/simplesamlphp,sitya/simplesamlphp,sylvainmed/simplesamlphp,gtkrug/simplesamlphp,dnmvisser/simplesamlphp,sylvainmed/simplesamlphp,dnmvisser/simplesamlphp,dnmvisser/simplesamlphp,maytechnet/simplesamlphp,girgen/simplesamlphp,ghalse/simplesamlphp,simplesamlphp/simplesamlphp,dialogik/simplesamlphp,girgen/simplesamlphp,madmatt/simplesamlphp,ghalse/simplesamlphp,simplesamlphp/simplesamlphp,shoaibali/simplesamlphp,jschlyter/simplesamlphp,sitya/simplesamlphp,jschlyter/simplesamlphp,shoaibali/simplesamlphp,Kunstmaan/simplesamlphp,maytechnet/simplesamlphp,simplesamlphp/simplesamlphp,dialogik/simplesamlphp,grnet/simplesamlphp,dzuelke/simplesamlphp,sitya/simplesamlphp,girgen/simplesamlphp,BrettMerrick/simplesamlphp,cwaldbieser/simplesamlphp,dzuelke/simplesamlphp,ghalse/simplesamlphp,grnet/simplesamlphp