[OCaml] Various types fixes
[OCaml] Makefile compiles into a library
[OCaml] ApiUser create with a required language
[OCaml] "Go" Handle an API method in one clean function
[OCaml] Error handling using null on success (instead of success element)
[OCaml] Bug: wrong list label for items
[OCaml] New API for user with password (+ real optional parameters)
[OCaml] List element now has a limit
[OCaml] I just realized that YoJson can handle optional types
[OCaml] Elements ids are string, not int
[OCaml] Achievements API without parents, with pagination parameters
[OCaml] Get users, edit users