Hide referrals list when empty
Hide referrals list when empty

Ref saasquatch/time-credit-theme#17

saasquatch/default-theme,hmacphail/dollar-credit-theme,jericmason/dollar-credit-theme,hmacphail/dollar-credit-theme,saasquatch/dollar-credit-theme,saasquatch/dollar-credit-theme,jorgeconde/dollar-credit-theme,jericmason/dollar-credit-theme,saasquatch/default-theme