deref, call, errorSelector fixes
deref, call, errorSelector fixes

sdesai/falcor,nicolasartman/falcor,jontewks/falcor,michaelbpaulson/falcor,jontewks/falcor,Netflix/falcor,nicolasartman/falcor,sdesai/falcor,Netflix/falcor,michaelbpaulson/falcor