Add some more convenience methods to Size.
Add some more convenience methods to Size.

Swift SVN r16876

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