saml: Handle entityID === NULL.
saml: Handle entityID === NULL.

git-svn-id: a243b28a2a52d65555a829a95c8c333076d39ae1@1841 44740490-163a-0410-bde0-09ae8108e29a

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