mruby/mruby — pull request #440 by masamitsu-murase (2012-08-25 19:41:27+00:00)
Title: Publish mrb_hash_delete_key.

This is not a bug fix but a request.

I want hash.c to publish `mrb_hash_delete_key` as well as `mrb_hash_set`, `mrb_hash_get` and `mrb_hash_fetch`, because "delete" is also a primitive operation of hash.