Added InstallVersionedLib to default environment init for orthogonality with other Install[As] methods.
Added InstallVersionedLib to default environment init for orthogonality with other Install[As] methods.

timj/scons,timj/scons,timj/scons,timj/scons,timj/scons,timj/scons,timj/scons,timj/scons,timj/scons