The source project of this merge request has been removed.
Supporting arbitrary query parameters
This is a breaking change to the API since it requires each Gitlab method to be provided an Option as a parameter, but in this way, the user could supply custom query parameters to their requests, adding flexibility to the library.
EDIT: The proposal is no longer to use Option, but instead a type alias has been defined to satisfy expecting input as an iterable list of string two-tuples.