closes #199 Add credits/license doc and credits command

Author: shawncplus

bundles/ranvier-commands/commands/credits.js

@@ -0,0 +1,11 @@
+'use strict';
+
+module.exports = srcPath => {
+  const Broadcast = require(srcPath + 'Broadcast');
+
+  return {
+    command: state => (args, player) => {
+      state.CommandManager.get('help').execute('credits', player);
+    }
+  };
+};

bundles/ranvier-commands/help/credits.yml

@@ -0,0 +1,12 @@
+---
+body: |
+  This MUD was built using the Ranvier codebase. You can find out more about Ranvier and its developers at http://ranviermud.com
+
+  Creator
+  ---
+  Shawn Biddle   (github.com/shawncplus)
+
+  Developers
+  ---
+  Sean O'Donohue (github.com/seanohue)
+  Josh Williams  (github.com/jackjwilliams)

docs/license.md

@@ -0,0 +1,19 @@
+Ranvier is MIT licensed, you can see the full text of our license in the LICENSE.txt file in the root of the repo.
+
+## Credits
+
+Unlike the Diku license Ranvier has no license requirement that you include credits on the login screen. However,
+Ranvier is a labor of love and a lot of effort. As such, it would be much appreciated if you included the credits listed
+below in your game in a command, helpfile, or if you really want right on the login screen.
+
+If you've made contributions to Ranvier and wish to have your name added to this list feel free to send a pull request
+on github.
+
+### Creator
+
+Shawn Biddle (github.com/shawncplus)
+
+### Developers
+
+* Sean O'Donohue (github.com/seanohue)
+* Josh Williams (github.com/jackjwilliams)

mkdocs.yml

@@ -41,3 +41,4 @@ pages:
 - Contributing: contributing.md
 - Web API: api.md
 - Common Issues: common_issues.md
+- License/Credits: license.md