Improve groupchat feature
Improve groupchat feature

- Fix some bugs in title length restriction.
- Run titles through the chatfilter.
- Unify error messages into errorReply.

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