figure out pathname, dont crash if callback isnt supplied

public/src/client/groups/details.js

@@ -120,7 +120,9 @@ define('forum/groups/details', ['iconSelect', 'vendor/colorpicker/colorpicker',
 					}
 
 					if (settings.name) {
-						ajaxify.go('groups/' + encodeURIComponent(settings.name));
+						var pathname = window.location.pathname;
+						pathname = pathname.substr(1, pathname.lastIndexOf('/'));
+						ajaxify.go(pathname + encodeURIComponent(settings.name));
 					} else {
 						ajaxify.refresh();
 					}

src/database/redis/main.js

@@ -77,6 +77,7 @@ module.exports = function(redisClient, module) {
 	};
 
 	module.deleteAll = function(keys, callback) {
+		callback = callback || function() {};
 		var multi = redisClient.multi();
 		for(var i=0; i<keys.length; ++i) {
 			multi.del(keys[i]);
@@ -91,16 +92,19 @@ module.exports = function(redisClient, module) {
 	};
 
 	module.set = function(key, value, callback) {
+		callback = callback || function() {};
 		redisClient.set(key, value, function(err) {
 			callback(err);
 		});
 	};
 
 	module.increment = function(key, callback) {
+		callback = callback || function() {};
 		redisClient.incr(key, callback);
 	};
 
 	module.rename = function(oldKey, newKey, callback) {
+		callback = callback || function() {};
 		redisClient.rename(oldKey, newKey, function(err, res) {
 			callback(err);
 		});