Update member scopes to new syntax
Update member scopes to new syntax

We’re using the new syntax elsewhere in the code like
https://github.com/seattlerb/seattlerb.org/blob/master/app/models/talk.r
b#L10

seattlerb/seattlerb.org,seattlerb/seattlerb.org,phiggins/seattlerb.org,seattlerb/seattlerb.org,phiggins/seattlerb.org,phiggins/seattlerb.org