object-shorthand doesn't allow optional parameters

[mhagmajer]

The configuration below raises "Configuration invalid" errors.

    'babel/object-shorthand': [2, 'always', {
      ignoreConstructors: false,
      avoidQuotes: true,
    }],

[danez]

The rule in this repository is based on an older version of the original object-shorthand rule. This means that the 3rd config param in the array is not supported, only 'babel/object-shorthand': [2, 'always'] should work currently.

[hzoo]

deprecating those rules so closing #115