Changed default to default_target, also added frontend and backend to operating system
Changed default to default_target, also added frontend and backend to operating system

matthiasdiener/spack,iulian787/spack,matthiasdiener/spack,LLNL/spack,tmerrick1/spack,mfherbst/spack,matthiasdiener/spack,tmerrick1/spack,skosukhin/spack,lgarren/spack,skosukhin/spack,TheTimmy/spack,krafczyk/spack,lgarren/spack,skosukhin/spack,tmerrick1/spack,EmreAtes/spack,LLNL/spack,lgarren/spack,krafczyk/spack,EmreAtes/spack,TheTimmy/spack,iulian787/spack,EmreAtes/spack,LLNL/spack,matthiasdiener/spack,krafczyk/spack,EmreAtes/spack,skosukhin/spack,tmerrick1/spack,mfherbst/spack,TheTimmy/spack,EmreAtes/spack,iulian787/spack,iulian787/spack,lgarren/spack,mfherbst/spack,skosukhin/spack,krafczyk/spack,LLNL/spack,iulian787/spack,TheTimmy/spack,mfherbst/spack,tmerrick1/spack,LLNL/spack,matthiasdiener/spack,mfherbst/spack,krafczyk/spack,lgarren/spack,TheTimmy/spack