[utils] build-script.sh: Don't build/test SourceKit by default
[utils] build-script.sh: Don't build/test SourceKit by default

You can still request sourcekit by passing -s on the command-line.

Along the way, buildbot-script.sh now tolerates missing SourceKit
sources if it is being asked to skip the SourceKit build.

Swift SVN r13170

gottesmm/swift,uasys/swift,therealbnut/swift,LeoShimonaka/swift,karwa/swift,shajrawi/swift,felix91gr/swift,xwu/swift,alblue/swift,kperryua/swift,return/swift,sschiau/swift,xedin/swift,roambotics/swift,SwiftAndroid/swift,milseman/swift,tkremenek/swift,benlangmuir/swift,manavgabhawala/swift,russbishop/swift,modocache/swift,tkremenek/swift,karwa/swift,gregomni/swift,Jnosh/swift,jmgc/swift,JGiola/swift,harlanhaskins/swift,milseman/swift,xedin/swift,karwa/swift,KrishMunot/swift,allevato/swift,kusl/swift,swiftix/swift.old,tinysun212/swift-windows,shajrawi/swift,gmilos/swift,ben-ng/swift,allevato/swift,JaSpa/swift,amraboelela/swift,jopamer/swift,OscarSwanros/swift,khizkhiz/swift,swiftix/swift,swiftix/swift.old,ben-ng/swift,OscarSwanros/swift,kstaring/swift,austinzheng/swift,bitjammer/swift,mightydeveloper/swift,alblue/swift,codestergit/swift,OscarSwanros/swift,Jnosh/swift,SwiftAndroid/swift,swiftix/swift.old,JaSpa/swift,therealbnut/swift,sdulal/swift,mightydeveloper/swift,aschwaighofer/swift,brentdax/swift,OscarSwanros/swift,sdulal/swift,lorentey/swift,ken0nek/swift,IngmarStein/swift,johnno1962d/swift,sschiau/swift,hooman/swift,JGiola/swift,amraboelela/swift,IngmarStein/swift,jopamer/swift,kstaring/swift,manavgabhawala/swift,MukeshKumarS/Swift,IngmarStein/swift,gottesmm/swift,gribozavr/swift,ahoppen/swift,JaSpa/swift,shahmishal/swift,aschwaighofer/swift,jckarter/swift,alblue/swift,cbrentharris/swift,zisko/swift,gribozavr/swift,therealbnut/swift,lorentey/swift,hughbe/swift,jckarter/swift,hooman/swift,JGiola/swift,russbishop/swift,zisko/swift,gregomni/swift,kperryua/swift,cbrentharris/swift,djwbrown/swift,manavgabhawala/swift,rudkx/swift,atrick/swift,emilstahl/swift,codestergit/swift,brentdax/swift,kperryua/swift,ahoppen/swift,mightydeveloper/swift,arvedviehweger/swift,nathawes/swift,felix91gr/swift,arvedviehweger/swift,hughbe/swift,CodaFi/swift,glessard/swift,emilstahl/swift,jckarter/swift,airspeedswift/swift,kperryua/swift,return/swift,jckarter/swift,Ivacker/swift,shahmishal/swift,Ivacker/swift,Jnosh/swift,deyton/swift,benlangmuir/swift,amraboelela/swift,austinzheng/swift,milseman/swift,natecook1000/swift,alblue/swift,uasys/swift,alblue/swift,alblue/swift,return/swift,kstaring/swift,milseman/swift,adrfer/swift,sdulal/swift,calebd/swift,uasys/swift,bitjammer/swift,calebd/swift,uasys/swift,kentya6/swift,tardieu/swift,swiftix/swift,airspeedswift/swift,OscarSwanros/swift,CodaFi/swift,adrfer/swift,benlangmuir/swift,tinysun212/swift-windows,parkera/swift,OscarSwanros/swift,jopamer/swift,LeoShimonaka/swift,stephentyrone/swift,sschiau/swift,jckarter/swift,JGiola/swift,slavapestov/swift,kperryua/swift,jckarter/swift,tinysun212/swift-windows,gregomni/swift,russbishop/swift,cbrentharris/swift,mightydeveloper/swift,practicalswift/swift,kusl/swift,brentdax/swift,Jnosh/swift,kperryua/swift,LeoShimonaka/swift,austinzheng/swift,jopamer/swift,lorentey/swift,danielmartin/swift,kentya6/swift,shahmishal/swift,djwbrown/swift,zisko/swift,swiftix/swift,frootloops/swift,danielmartin/swift,djwbrown/swift,gmilos/swift,tardieu/swift,swiftix/swift,stephentyrone/swift,brentdax/swift,calebd/swift,return/swift,nathawes/swift,therealbnut/swift,swiftix/swift.old,aschwaighofer/swift,frootloops/swift,emilstahl/swift,return/swift,OscarSwanros/swift,IngmarStein/swift,ken0nek/swift,amraboelela/swift,slavapestov/swift,lorentey/swift,nathawes/swift,djwbrown/swift,IngmarStein/swift,parkera/swift,johnno1962d/swift,tjw/swift,russbishop/swift,huonw/swift,MukeshKumarS/Swift,dreamsxin/swift,shajrawi/swift,mightydeveloper/swift,hughbe/swift,emilstahl/swift,IngmarStein/swift,atrick/swift,adrfer/swift,danielmartin/swift,stephentyrone/swift,adrfer/swift,jmgc/swift,shajrawi/swift,djwbrown/swift,dduan/swift,hughbe/swift,kentya6/swift,jtbandes/swift,shahmishal/swift,milseman/swift,shajrawi/swift,bitjammer/swift,kusl/swift,deyton/swift,swiftix/swift.old,parkera/swift,gottesmm/swift,sschiau/swift,glessard/swift,ken0nek/swift,danielmartin/swift,glessard/swift,jtbandes/swift,aschwaighofer/swift,cbrentharris/swift,airspeedswift/swift,apple/swift,tjw/swift,ben-ng/swift,karwa/swift,rudkx/swift,jopamer/swift,LeoShimonaka/swift,return/swift,rudkx/swift,MukeshKumarS/Swift,stephentyrone/swift,roambotics/swift,SwiftAndroid/swift,roambotics/swift,sschiau/swift,gregomni/swift,xedin/swift,adrfer/swift,brentdax/swift,slavapestov/swift,allevato/swift,cbrentharris/swift,karwa/swift,return/swift,practicalswift/swift,felix91gr/swift,jtbandes/swift,modocache/swift,ben-ng/swift,allevato/swift,frootloops/swift,KrishMunot/swift,devincoughlin/swift,karwa/swift,ken0nek/swift,dduan/swift,xwu/swift,practicalswift/swift,austinzheng/swift,kentya6/swift,tinysun212/swift-windows,practicalswift/swift,jopamer/swift,khizkhiz/swift,gottesmm/swift,slavapestov/swift,swiftix/swift,xedin/swift,alblue/swift,johnno1962d/swift,therealbnut/swift,natecook1000/swift,xwu/swift,swiftix/swift.old,bitjammer/swift,apple/swift,kstaring/swift,danielmartin/swift,natecook1000/swift,CodaFi/swift,calebd/swift,sdulal/swift,johnno1962d/swift,atrick/swift,xwu/swift,djwbrown/swift,codestergit/swift,austinzheng/swift,benlangmuir/swift,codestergit/swift,gottesmm/swift,tkremenek/swift,KrishMunot/swift,nathawes/swift,kusl/swift,shahmishal/swift,codestergit/swift,dduan/swift,MukeshKumarS/Swift,ben-ng/swift,dduan/swift,modocache/swift,apple/swift,khizkhiz/swift,jtbandes/swift,KrishMunot/swift,slavapestov/swift,danielmartin/swift,devincoughlin/swift,tkremenek/swift,xedin/swift,JaSpa/swift,jtbandes/swift,CodaFi/swift,benlangmuir/swift,huonw/swift,dreamsxin/swift,gmilos/swift,dduan/swift,hooman/swift,SwiftAndroid/swift,kstaring/swift,tkremenek/swift,arvedviehweger/swift,emilstahl/swift,harlanhaskins/swift,gmilos/swift,gmilos/swift,slavapestov/swift,karwa/swift,parkera/swift,ahoppen/swift,dduan/swift,SwiftAndroid/swift,parkera/swift,tinysun212/swift-windows,kperryua/swift,felix91gr/swift,apple/swift,hughbe/swift,LeoShimonaka/swift,hooman/swift,apple/swift,shajrawi/swift,atrick/swift,cbrentharris/swift,atrick/swift,stephentyrone/swift,xedin/swift,deyton/swift,huonw/swift,ben-ng/swift,brentdax/swift,khizkhiz/swift,codestergit/swift,kusl/swift,tardieu/swift,devincoughlin/swift,arvedviehweger/swift,codestergit/swift,jmgc/swift,harlanhaskins/swift,xwu/swift,russbishop/swift,mightydeveloper/swift,Ivacker/swift,tkremenek/swift,JaSpa/swift,gmilos/swift,hughbe/swift,ahoppen/swift,swiftix/swift.old,airspeedswift/swift,jmgc/swift,frootloops/swift,atrick/swift,shahmishal/swift,calebd/swift,frootloops/swift,Ivacker/swift,khizkhiz/swift,CodaFi/swift,sdulal/swift,tkremenek/swift,jmgc/swift,benlangmuir/swift,devincoughlin/swift,austinzheng/swift,Jnosh/swift,devincoughlin/swift,ahoppen/swift,allevato/swift,LeoShimonaka/swift,harlanhaskins/swift,hooman/swift,ben-ng/swift,swiftix/swift,adrfer/swift,JaSpa/swift,aschwaighofer/swift,gottesmm/swift,KrishMunot/swift,hooman/swift,xedin/swift,nathawes/swift,Jnosh/swift,arvedviehweger/swift,tjw/swift,arvedviehweger/swift,lorentey/swift,tjw/swift,Ivacker/swift,ken0nek/swift,CodaFi/swift,glessard/swift,gribozavr/swift,ahoppen/swift,shahmishal/swift,glessard/swift,tardieu/swift,harlanhaskins/swift,amraboelela/swift,MukeshKumarS/Swift,deyton/swift,sschiau/swift,gmilos/swift,mightydeveloper/swift,MukeshKumarS/Swift,sschiau/swift,mightydeveloper/swift,kentya6/swift,airspeedswift/swift,SwiftAndroid/swift,tardieu/swift,xwu/swift,huonw/swift,harlanhaskins/swift,brentdax/swift,kstaring/swift,JGiola/swift,johnno1962d/swift,hooman/swift,sdulal/swift,kentya6/swift,zisko/swift,manavgabhawala/swift,JGiola/swift,russbishop/swift,devincoughlin/swift,therealbnut/swift,deyton/swift,huonw/swift,sschiau/swift,bitjammer/swift,natecook1000/swift,arvedviehweger/swift,tjw/swift,glessard/swift,airspeedswift/swift,CodaFi/swift,parkera/swift,jopamer/swift,Ivacker/swift,lorentey/swift,johnno1962d/swift,devincoughlin/swift,parkera/swift,xwu/swift,swiftix/swift.old,roambotics/swift,djwbrown/swift,practicalswift/swift,russbishop/swift,natecook1000/swift,gregomni/swift,huonw/swift,Ivacker/swift,felix91gr/swift,practicalswift/swift,zisko/swift,LeoShimonaka/swift,tinysun212/swift-windows,gribozavr/swift,frootloops/swift,cbrentharris/swift,practicalswift/swift,KrishMunot/swift,milseman/swift,parkera/swift,gribozavr/swift,JaSpa/swift,tjw/swift,amraboelela/swift,emilstahl/swift,kusl/swift,kstaring/swift,uasys/swift,gribozavr/swift,ken0nek/swift,rudkx/swift,gottesmm/swift,manavgabhawala/swift,gregomni/swift,jckarter/swift,slavapestov/swift,aschwaighofer/swift,johnno1962d/swift,LeoShimonaka/swift,karwa/swift,kentya6/swift,amraboelela/swift,natecook1000/swift,khizkhiz/swift,emilstahl/swift,ken0nek/swift,danielmartin/swift,khizkhiz/swift,xedin/swift,stephentyrone/swift,cbrentharris/swift,huonw/swift,roambotics/swift,tardieu/swift,adrfer/swift,gribozavr/swift,modocache/swift,dduan/swift,milseman/swift,stephentyrone/swift,emilstahl/swift,gribozavr/swift,harlanhaskins/swift,apple/swift,roambotics/swift,aschwaighofer/swift,Ivacker/swift,austinzheng/swift,practicalswift/swift,KrishMunot/swift,tinysun212/swift-windows,allevato/swift,felix91gr/swift,MukeshKumarS/Swift,jtbandes/swift,shajrawi/swift,therealbnut/swift,lorentey/swift,modocache/swift,calebd/swift,natecook1000/swift,rudkx/swift,sdulal/swift,jmgc/swift,rudkx/swift,shahmishal/swift,kusl/swift,SwiftAndroid/swift,kentya6/swift,uasys/swift,felix91gr/swift,manavgabhawala/swift,devincoughlin/swift,zisko/swift,calebd/swift,manavgabhawala/swift,deyton/swift,Jnosh/swift,frootloops/swift,jmgc/swift,zisko/swift,modocache/swift,shajrawi/swift,hughbe/swift,deyton/swift,sdulal/swift,swiftix/swift,bitjammer/swift,modocache/swift,nathawes/swift,nathawes/swift,kusl/swift,allevato/swift,tjw/swift,bitjammer/swift,uasys/swift,airspeedswift/swift,jtbandes/swift,lorentey/swift,IngmarStein/swift,tardieu/swift