4d5afd743f
`jsontoml` is very similar to `tomljson` It uses json.Unmarshal to convert read json to map and then converts the map to tree using `toml.TreeFromMap`. Then this tree is converted to toml using `tree.toTomlString()` The numbers when taken as input from json get converted to float64 because of how `json.Unmarshal()` converts all json numbers to float. Fixes #280