Question: Mongoose adds a '\_\_v' property into Schema's for versioning - is it possible to disable this globally or globally hide it from all queries?

Answer: 
Two ways:

1. `{versionKey: false}`
2. when you query, like `model.findById(id).select('-__v')`

`'-'` means exclude the field
Yes, it is simple, just edit the "schema.js" file that is inside 

`"node_modules\mongoose\lib"`

Search for `"options = utils.options ({ ... versionKey: '__v'..."` and change value `"__v"` to `false`. 

This will change all post requests. `(versionKey: '__v' => versionKey: false)`