Fix help form when logged out
Fix help form when logged out

Now, instead of the generic "Access denied" screen, it tells you to log
in.

panpawn/Gold-Server,svivian/Pokemon-Showdown,Enigami/Pokemon-Showdown,urkerab/Pokemon-Showdown,AustinXII/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,svivian/Pokemon-Showdown,xfix/Pokemon-Showdown,svivian/Pokemon-Showdown,Zarel/Pokemon-Showdown,panpawn/Gold-Server,AustinXII/Pokemon-Showdown,Enigami/Pokemon-Showdown,urkerab/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,Enigami/Pokemon-Showdown,AustinXII/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,xfix/Pokemon-Showdown,svivian/Pokemon-Showdown,svivian/Pokemon-Showdown,Enigami/Pokemon-Showdown,panpawn/Gold-Server,Zarel/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,xfix/Pokemon-Showdown,xfix/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,Zarel/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,xfix/Pokemon-Showdown,urkerab/Pokemon-Showdown