Update release HOWTO now that our download web page points to the packages on SourceForge.
Update release HOWTO now that our download web page points to the packages on SourceForge.

Distrotech/scons,timj/scons,andrewyoung1991/scons,timj/scons,timj/scons,andrewyoung1991/scons,timj/scons,Distrotech/scons,andrewyoung1991/scons,timj/scons,andrewyoung1991/scons,Distrotech/scons,andrewyoung1991/scons,andrewyoung1991/scons,timj/scons,timj/scons,Distrotech/scons,andrewyoung1991/scons,timj/scons,timj/scons,andrewyoung1991/scons,andrewyoung1991/scons,Distrotech/scons