Use cardano-sl-0.3-mid branch from cardano-sl project
Use cardano-sl-0.3-mid branch from cardano-sl project

input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl,input-output-hk/cardano-sl,input-output-hk/cardano-sl-explorer,input-output-hk/cardano-sl,input-output-hk/pos-haskell-prototype,input-output-hk/cardano-sl-explorer,input-output-hk/cardano-sl-explorer,input-output-hk/pos-haskell-prototype