SessionHandlerPHP: Don't call session_start() if it has been called earlier.
SessionHandlerPHP: Don't call session_start() if it has been called earlier.


git-svn-id: a243b28a2a52d65555a829a95c8c333076d39ae1@84 44740490-163a-0410-bde0-09ae8108e29a

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