doing some reshuffling in public/src

public/src/admin and public/src/client; also some cleanup in
src/meta/js, no need to filter out admin files anymore

public/src/client/login.js

@@ -0,0 +1,39 @@
+"use strict";
+/* global define, app, RELATIVE_PATH */
+
+define('forum/login', function() {
+	var	Login = {};
+
+	Login.init = function() {
+		var errorEl = $('#login-error-notify'),
+			submitEl = $('#login'),
+			formEl = $('#login-form');
+
+		submitEl.on('click', function(e) {
+			e.preventDefault();
+
+			if (!$('#username').val() || !$('#password').val()) {
+				translator.translate('[[error:invalid-username-or-password]]', function(translated) {
+					errorEl.find('p').text(translated)
+					errorEl.show();
+				});
+			} else {
+				errorEl.hide();
+
+				if (!submitEl.hasClass('disabled')) {
+					submitEl.addClass('disabled');
+					formEl.submit();
+				}
+			}
+		});
+
+		$('#login-error-notify button').on('click', function(e) {
+			e.preventDefault();
+			errorEl.hide();
+		});
+
+		$('#content #username').focus();
+	};
+
+	return Login;
+});