sync gateway config for convergence

sg_config.json

{
  "log":[
    "*",
    "Import+"
  ],
  "databases":{
    "db":{
      "users":{
        "GUEST":{
          "disabled":false,
          "admin_channels":[
            "*"
          ]
        },
        "testuser":{
          "admin_channels":[
            "ch_testuser"
          ],
          "password":"ch_password"
        }
      },
      "server": "http://Administrator:password@172.23.108.103:8091",
      "bucket":"default",
      "password":"password",
      "import_docs":"continuous",
      "unsupported":{
        "enable_extended_attributes":true,
        "replicator_2":true
      }
    }
  }
}