Conform with express-validator on parameter representation

`body-parser` and `express-validator` are both commonly used packages to process HTML forms. They are a pretty good fit aswell, since the parser allows the parsing of nested objects, and the validator allows the validation of nested objects. The shortcoming is when representing the `param` field of a validation error.

Currently, as far as I can see, there is no way to tell the body parser to use the "dot syntax", where nested objects are represented as `my.nested.object` instead of `my[nested][object]` in the HTML input names. The validator however, returns the parameter names in precisely this format, and I cannot seem to find a way to change this.

Is it possible to provide a parameter to the `urlencoded` options that allows the activation of `qs`'s `allowDots` option? Then the fields names could be written in the dot format, parsed in the dot format and validated in the dot format.