[keycloak-dev] Promise wrapper for javascript adapter

[Raymond DeCampo]

Hello all,

I create a wrapper around the javascript adapter which uses ES6 native
Promises.  (https://github.com/RayDeCampo/keycloak-promise).

If you are interested, I can re-package it for inclusion in Keycloak and
create a pull request on GitHub.  If you have a different process for
contributions, let me know.

If you are not interested, no hard feelings.

Thanks,
Ray