0.4.3

• Optional argument to open File Browser in other group

    {
      "keys": ["f1"],
      "command": "dired",
      "args": {
        "immediate": true,
        "other_group": "left" // or "right"
      }
    }

• Automatically set a single column/group if there are two columns, and
  a closed view was File Browser and the only one in its group.