Added role creation and new role listening

bot.createRole(server, cb(err, ServerPermissions))

and

bot.on("serverRoleCreate", server, ServerPermissions)

lib/server.js

@@ -94,6 +94,17 @@ var Server = (function () {
 		return null;
 	};
 
+	Server.prototype.addRole = function addRole(data) {
+
+		if (this.getRole(data.id)) {
+			return this.getRole(data.id);
+		}
+
+		var perms = new ServerPermissions(data);
+		this.roles.push(perms);
+		return perms;
+	};
+
 	Server.prototype.updateRole = function updateRole(data) {
 
 		var oldRole = this.getRole(data.id);