Added function to generate random bytes from /dev/urandom, and changed generateID to use this function.
Added function to generate random bytes from /dev/urandom, and changed generateID to use this function.


git-svn-id: a243b28a2a52d65555a829a95c8c333076d39ae1@547 44740490-163a-0410-bde0-09ae8108e29a

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