Fix #356

lib/user.js

@@ -538,8 +538,7 @@ User.prototype.guestLogin = function (name) {
         self.socket.emit("login", {
             success: false,
             error: "Invalid username.  Usernames must be 1-20 characters long and " +
-                   "consist only of characters a-z, A-Z, 0-9, -, _, and accented " +
-                   "letters."
+                   "consist only of characters a-z, A-Z, 0-9, -, or _."
         });
         return;
     }

templates/register.jade

@@ -72,7 +72,7 @@ html(lang="en")
           $("<p/>").addClass("text-danger")
             .attr("id", "usernameerror")
             .text("Username must consist of 1-20 characters a-Z, A-Z, 0-9 " +
-                  ", -, _, and accented letters.")
+                  ", -, or _.")
             .insertAfter($("#username"));
           return false;
         } else {