Update build to use scons-addons.  For now developers have to have in path.  Once build stabalizes, this will be imported in a vendor branch in tools/build so this will not need to be a requirement.
Update build to use scons-addons.  For now developers have to have in path.  Once build stabalizes, this will be imported in a vendor branch in tools/build so this will not need to be a requirement.


git-svn-id: da971a70ceb35e96c0ae8b7b17da8ade7fcdfcb6@380 bdc45a6f-1a19-0410-8385-c3db3a2b84f1

rpavlik/cppdom-old-fork,rpavlik/cppdom-old-fork,rpavlik/cppdom-old-fork,rpavlik/cppdom-old-fork