Update the build-release.sh script to always use composer and git.
Update the build-release.sh script to always use composer and git.

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