Fixed evaluation and added basic deletion following

lib/Client.js

@@ -1134,6 +1134,17 @@ var Client = (function () {
 
 						break;
 
+					case "GUILD_ROLE_DELETE":
+
+						var server = self.getServer("id", data.guild_id);
+						var role = server.getRole(data.role_id);
+
+						self.trigger("serverRoleDelete", server, role);
+
+						server.removeRole(role.id);
+
+						break;
+
 					default:
 						self.debug("received unknown packet");
 						self.trigger("unknown", dat);