* Added handling of api keys in headers.
* Added handling of optional arguments in api functions.
* Optional header params.
* Fixed a bug in path param replacement.
* Relaxed deserializing of model records with @@deriving yojson { strict = false }. It allows receiving more fields in the JSon payload than declared in the OCaml record, fields not matching any record field are ignored.
* Reformatted api-impl.mustache.
* Generate shorter enum value names by allowing underscore character.
* Cleanup of optional params generation.
* Updated the OCaml samples with the latest version of the generator.
* Corrected a bug encountered when generating default value for optional enum fields.
* Added v3 version of the samples for the OCaml generator.
