Improve private room support
Improve private room support

It's now possible to convert between secret and hidden rooms without
first making the room public. 'Secret room' is now the official
name for private rooms that aren't affected by global moderation,
and a new alias /secretroom has been introduced to reflect that.

JellalTheMage/PS-,JennyPRO/Jenny,bai2/Dropp,TheManwithskills/serenity,HoeenCoder/SpacialGaze,megaslowbro1/Pokemon-Showdown-Server-for-megaslowbro1,brettjbush/Pokemon-Showdown,javi501/Lumen-Pokemon-Showdown,urkerab/Pokemon-Showdown,CreaturePhil/Showdown-Boilerplate,svivian/Pokemon-Showdown,QuiteQuiet/Pokemon-Showdown,KewlStatics/Alliance,superman8900/Pokemon-Showdown,KaitoV4X/Showdown,danpantry/Pokemon-Showdown,TheFenderStory/Pokemon-Showdown,gustavo515/test,QuiteQuiet/Pokemon-Showdown,hayleysworld/serenityserver,Hidden-Mia/Roleplay-PS,yashagl/yash-showdown,PS-Spectral/Spectral,CreaturePhil/Showdown-Boilerplate,Bryan-0/Pokemon-Showdown,Git-Worm/City-PS,psnsVGC/Wish-Server,AWailOfATail/Pokemon-Showdown,SilverTactic/Dragotica-Pokemon-Showdown,Volcos/SpacialGaze,zek7rom/SpacialGaze,hayleysworld/serenityserver,AWailOfATail/Pokemon-Showdown,TheManwithskills/Dusk--Showdown,arkanox/MistShowdown,TheDiabolicGift/Showdown-Boilerplate,Pikachuun/Pokemon-Showdown-SMCMDM,CharizardtheFireMage/Showdown-Boilerplate,Firestatics/omega,hayleysworld/Showdown-Boilerplate,ZeroParadox/ugh,azum4roll/Pokemon-Showdown,scotchkorean27/Pokemon-Showdown,ShowdownHelper/Saffron,Kevinxzllz/PS-Openshift-Server,xfix/Pokemon-Showdown,piiiikachuuu/Pokemon-Showdown,KewlStatics/Showdown-Template,hayleysworld/serenityc9,DarkSuicune/Pokemon-Showdown,gustavo515/batata,TheManwithskills/Server---Thermal,TheManwithskills/Server---Thermal,aakashrajput/Pokemon-Showdown,yashagl/pokemon-showdown,Firestatics/Firestatics46,TheManwithskills/serenity,panpawn/Gold-Server,Volcos/SpacialGaze,xfix/Pokemon-Showdown,Pablo000/aaa,TheFenderStory/Showdown-Boilerplate,TheManwithskills/Server,abrulochp/Dropp-Pokemon-Showdown,Nineage/Origin,Pablo000/aaa,hayleysworld/Showdown-Boilerplate,lAlejandro22/lolipoop,ScottehMax/Pokemon-Showdown,SilverTactic/Showdown-Boilerplate,Wando94/Spite,megaslowbro1/Pokemon-Showdown-Server-for-megaslowbro1,Zarel/Pokemon-Showdown,Firestatics/omega,ScottehMax/Pokemon-Showdown,ehk12/bigbangtempclone,Irraquated/Pokemon-Showdown,SolarisFox/Pokemon-Showdown,lFernanl/Lumen-Pokemon-Showdown,gustavo515/test,TheFenderStory/Showdown-Boilerplate,TheManwithskills/DS,megaslowbro1/Showdown-Server-again,svivian/Pokemon-Showdown,hayleysworld/serenity,Kokonoe-san/Glacia-PS,AWailOfATail/awoat,Firestatics/Omega-Alpha,EienSeiryuu/Pokemon-Showdown,Enigami/Pokemon-Showdown,Zarel/Pokemon-Showdown,Enigami/Pokemon-Showdown,DesoGit/TsunamiPS,Git-Worm/City-PS,DesoGit/Tsunami_PS,AustinXII/Pokemon-Showdown,Alpha-Devs/Alpha-Server,ankailou/Pokemon-Showdown,Ecuacion/Lumen-Pokemon-Showdown,MeliodasBH/boarhat,Lord-Haji/SpacialGaze,Pokemon-Devs/Pokemon-Showdown,Bryan-0/Pokemon-Showdown,ZestOfLife/FestiveLife,Pikachuun/Pokemon-Showdown,AnaRitaTorres/Pokemon-Showdown,lFernanl/Pokemon-Showdown,scotchkorean27/Pokemon-Showdown,DB898/theregalias,PS-Spectral/Spectral,TheManwithskills/COC,Celecitia/Plux-Pokemon-Showdown,NoahVSGamingYT/Pokemon-Showdown,TheDiabolicGift/Showdown-Boilerplate,DesoGit/Tsunami_PS,piiiikachuuu/Pokemon-Showdown,ShowdownHelper/Saffron,abulechu/Dropp-Pokemon-Showdown,abrulochp/Dropp-Pokemon-Showdown,Flareninja/Showdown-Boilerplate,theodelhay/test,HoeenCoder/SpacialGaze,gustavo515/gashoro,JennyPRO/Jenny,ehk12/coregit,svivian/Pokemon-Showdown,Elveman/RPCShowdownServer,Mystifi/Exiled,sirDonovan/Pokemon-Showdown,SSJGVegito007/Vegito-s-Server,KewlStatics/Shit,lAlejandro22/lolipoop,SkyeTheFemaleSylveon/Pokemon-Showdown,kuroscafe/Showdown-Boilerplate,azum4roll/Pokemon-Showdown,megaslowbro1/Pokemon-Showdown,Mystifi/Exiled,AnaRitaTorres/Pokemon-Showdown,Enigami/Pokemon-Showdown,xCrystal/Pokemon-Showdown,Lord-Haji/SpacialGaze,TbirdClanWish/Pokemon-Showdown,Wando94/Spite,urkerab/Pokemon-Showdown,xfix/Pokemon-Showdown,Kokonoe-san/Glacia-PS,yashagl/pokemon-showdown,xCrystal/Pokemon-Showdown,jd4564/Pokemon-Showdown,Pikachuun/Pokemon-Showdown-SMCMDM,lFernanl/Lumen-Pokemon-Showdown,Irraquated/Pokemon-Showdown,panpawn/Gold-Server,Enigami/Pokemon-Showdown,Lauc1an/Perulink-Showdown,abulechu/Dropp-Pokemon-Showdown,TheManwithskills/COC,Mystifi/Exiled,svivian/Pokemon-Showdown,Alpha-Devs/OmegaRuby-Server,Ecuacion/Pokemon-Showdown,gustavo515/final,Firestatics/Omega-Alpha,bai2/Dropp,Zarel/Pokemon-Showdown,TheManwithskills/Creature-phil-boiler,ZestOfLife/PSserver,Articuno-I/Pokemon-Showdown,Lord-Haji/SpacialGaze,Neosweiss/Pokemon-Showdown,hayleysworld/serenityc9,SilverTactic/Dragotica-Pokemon-Showdown,AWailOfATail/Pokemon-Showdown,HoeenCoder/SpacialGaze,theodelhay/test,ZeroParadox/ugh,DesoGit/TsunamiPS,forbiddennightmare/Pokemon-Showdown-1,KaitoV4X/Showdown,Pokemon-Devs/Pokemon-Showdown,Ecuacion/Pokemon-Showdown,Irraquated/Pokemon-Showdown,TheManwithskills/Dusk--Showdown,psnsVGC/Wish-Server,Syurra/Pokemon-Showdown,Nineage/Origin,Sora-League/Sora,Sora-League/Sora,ZeroParadox/BlastBurners,cadaeic/Pokemon-Showdown,DB898/theregalias,EmmaKitty/Pokemon-Showdown,yashagl/yash-showdown,Alpha-Devs/OmegaRuby-Server,TheFenderStory/Pokemon-Showdown,panpawn/Pokemon-Showdown,Vacate/Pokemon-Showdown,zek7rom/SpacialGaze,ZestOfLife/FestiveLife,kuroscafe/Paradox,PrimalGallade45/Dropp-Pokemon-Showdown,AWailOfATail/awoat,TheManwithskills/New-boiler-test,Syurra/Pokemon-Showdown,AustinXII/Pokemon-Showdown,gustavo515/batata,Lauc1an/Perulink-Showdown,JellalTheMage/PS-,DarkSuicune/Pokemon-Showdown,Sora-League/Sora,SSJGVegito007/Vegito-s-Server,sirDonovan/Pokemon-Showdown,MeliodasBH/Articuno-Land,QuiteQuiet/Pokemon-Showdown,SolarisFox/Pokemon-Showdown,KewlStatics/Showdown-Template,HoeenCoder/SpacialGaze,Wando94/Pokemon-Showdown,xfix/Pokemon-Showdown,PrimalGallade45/Lumen-Pokemon-Showdown,hayleysworld/serenity,k3naan/Pokemon-Showdown,Kevinxzllz/PS-Openshift-Server,Pikachuun/Pokemon-Showdown,sirDonovan/Pokemon-Showdown,lFernanl/Pokemon-Showdown,AbsolitoSweep/Absol-server,AbsolitoSweep/Absol-server,ZestOfLife/PSserver,KewlStatics/Alliance,danpantry/Pokemon-Showdown,TheManwithskills/New-boiler-test,ZeroParadox/BlastBurners,sama2/Dropp-Pokemon-Showdown,Alpha-Devs/Alpha-Server,EienSeiryuu/Pokemon-Showdown,kuroscafe/Showdown-Boilerplate,Firestatics/Firestatics46,svivian/Pokemon-Showdown,panpawn/Gold-Server,jumbowhales/Pokemon-Showdown,TheManwithskills/DS,urkerab/Pokemon-Showdown,Wando94/Pokemon-Showdown,brettjbush/Pokemon-Showdown,aakashrajput/Pokemon-Showdown,TbirdClanWish/Pokemon-Showdown,SilverTactic/Showdown-Boilerplate,PS-Spectral/Spectral,NoahVSGamingYT/Pokemon-Showdown,Elveman/RPCShowdownServer,CharizardtheFireMage/Showdown-Boilerplate,Guernouille/Pokemon-Showdown,sama2/Lumen-Pokemon-Showdown,xfix/Pokemon-Showdown,Vacate/Pokemon-Showdown,Hidden-Mia/Roleplay-PS,ehk12/bigbangtempclone,Flareninja/Pokemon-Showdown,gustavo515/gashoro,PrimalGallade45/Lumen-Pokemon-Showdown,xCrystal/Pokemon-Showdown,MeliodasBH/boarhat,cadaeic/Pokemon-Showdown,sama2/Lumen-Pokemon-Showdown,forbiddennightmare/Pokemon-Showdown-1,Articuno-I/Pokemon-Showdown,ehk12/coregit,PrimalGallade45/Dropp-Pokemon-Showdown,kotarou3/Krister-Pokemon-Showdown,arkanox/MistShowdown,CreaturePhil/Showdown-Boilerplate,Neosweiss/Pokemon-Showdown,Ecuacion/Lumen-Pokemon-Showdown,megaslowbro1/Showdown-Server-again,ShowdownHelper/Saffron,ankailou/Pokemon-Showdown,k3naan/Pokemon-Showdown,sama2/Dropp-Pokemon-Showdown,SkyeTheFemaleSylveon/Pokemon-Showdown,DesoGit/Tsunami_PS,superman8900/Pokemon-Showdown,javi501/Lumen-Pokemon-Showdown,MeliodasBH/Articuno-Land,kotarou3/Krister-Pokemon-Showdown,Guernouille/Pokemon-Showdown,TheManwithskills/Server,kuroscafe/Paradox,Flareninja/Pokemon-Showdown,panpawn/Pokemon-Showdown,TheManwithskills/Creature-phil-boiler,BlazingAura/Showdown-Boilerplate,aakashrajput/Pokemon-Showdown,jumbowhales/Pokemon-Showdown,BlazingAura/Showdown-Boilerplate,EmmaKitty/Pokemon-Showdown,Flareninja/Showdown-Boilerplate,Celecitia/Plux-Pokemon-Showdown,megaslowbro1/Pokemon-Showdown,AustinXII/Pokemon-Showdown,gustavo515/final,KewlStatics/Shit,KewlStatics/Pokeindia-Codes,jumbowhales/Pokemon-Showdown,jd4564/Pokemon-Showdown,KewlStatics/Pokeindia-Codes