aggregator: Add support for attribute authorities.
aggregator: Add support for attribute authorities.

git-svn-id: a243b28a2a52d65555a829a95c8c333076d39ae1@1963 44740490-163a-0410-bde0-09ae8108e29a

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