v0.2.3

* no longer tracking .ssl/ - need to be generated per-machine
* created script to generate key/signed-cert required for https out-of-box
* updated how lib/config.js handles "https" configuration option
        * "true" or a filesystem path will enable https
        * if "true" the default directory .ssl/ will be used as prefix
        * otherwise the given path with be used as prefix
* updated lib/ssl.js to reflect changes to lib/config.js
* updated config.json "https" option value to "true" to reflect changes to lib/config.js
* updated package.json to reflect new version

[todo]
* serve user-interface
* define user-interface
* build library to support user-interface
* port game library to server