added documentation and linker property to usecyclus
added documentation and linker property to usecyclus

rwcarlsen/cyclus,rwcarlsen/cyclus,Baaaaam/cyclus,hodger/cyclus,gidden/cyclus,Baaaaam/cyclus,hodger/cyclus,rwcarlsen/cyclus,gidden/cyclus,hodger/cyclus,mbmcgarry/cyclus,gidden/cyclus,rwcarlsen/cyclus,hodger/cyclus,mbmcgarry/cyclus,Baaaaam/cyclus,mbmcgarry/cyclus,gidden/cyclus,hodger/cyclus,mbmcgarry/cyclus