message: fix the typo in storage.abi
diff: "fields": {
  "account": "AccountName",
  "tokbalance": "UInt64",
  - "quotausage: "UInt64"
  + "quotausage": "UInt64"
  }
  },{
  "name": "Link",
  "size" : "UInt32",
  "store" : "UInt8",
  "accept": "UInt8",
  - "stake: : "UInt64",
  + "stake" : "UInt64",
  "producer": "AccountName"
  }
  }
  