Handle invalid allegiance names

[amoeba]

Emus don't properly restrict allegiance names so players in those allegiances get errors:

2020-05-25T07:48:37.068424713Z app[web.1]: 2020-05-25 07:48:37 - JSON::ParserError - 783: unexpected token at '{"version":"2","name":"Guru","race":"Gharu'ndim","gender":"Male","level":165,"allegiance_name":"Moe says, "thats why i have a fat wife"","rank":1,"followers":0,"server":"Drunkenfell","deaths":12,"birth":"5/22/2020 11:16:16 PM","total_xp":16237135914,"unassigned_xp":277040369,"skill_credits":15,"attribs":{"strength":{"name":"Strength","base":205,"creation":50},"endurance":{"name":"Endurance","base":221,"creation":40},"quickness":{"name":"Quickness","base":199,"creation":30},"coordination":{"name":"Coordination","base":178,"creation":10},"focus":{"name":"Focus","base":289,"creation":100},"self":{"name":"Self","base":281,"creation":100}},"vitals":{"health":{"name":"Health","base":287},"stamina":{"name":"Stamina","base":383},"mana":{"name":"Mana","base":448}},"skills":{"melee_defense":{"name":"melee_defense","base":301,"training":"Trained"},"missile_defense":{"name":"missile_defense","base":75,"training":"Untrained"},"arcane_lore":{"name":"arcane_lore","base":217,"training":"Trained"},"magic_defense":{"name":"magic_defense","base":198,"training":"Trained"},"mana_conversion":{"name":"mana_conversion","base":270,"training":"Specialized"},"item_tinkering":{"name":"item_tinkering","base":234,"training":"Untrained"},"assess_person":{"name":"assess_person","base":0,"training":"Untrained"},"deception":{"name":"deception","base":0,"training":"Untrained"},"healing":{"name":"healing","base":0,"training":"Unusable"},"jump":{"name":"jump","base":317,"training":"Trained"},"lockpick":{"name":"lockpick","base":0,"training":"Unusable"},"run":{"name":"run","base":344,"training":"Trained"},"assess_creature":{"name":"assess_creature","base":0,"training":"Untrained"},"weapon_tinkering":{"name":"weapon_tinkering","base":247,"training":"Untrained"},"armor_tinkering":{"name":"armor_tinkering","base":255,"training":"Untrained"},"magic_item_tinkering":{"name":"magic_item_tinkering","base":289,"training":"Untrained"},"creature_enchantment":{"name":"creature_enchantment","base":330,"training":"Trained"},"item_enchantment":{"name":"item_enchantment","base":340,"training":"Trained"},"life_magic":{"name":"life_magic","base":335,"training":"Trained"},"war_magic":{"name":"war_magic","base":371,"training":"Specialized"},"leadership":{"name":"leadership","base":0,"training":"Untrained"},"loyalty":{"name":"loyalty","base":5,"training":"Trained"},"fletching":{"name":"fletching","base":0,"training":"Unusable"},"alchemy":{"name":"alchemy","base":0,"training":"Unusable"},"cooking":{"name":"cooking","base":0,"training":"Unusable"},"salvaging":{"name":"salvaging","base":145,"training":"Trained"},"two_handed_combat":{"name":"two_handed_combat","base":128,"training":"Untrained"},"void_magic":{"name":"void_magic","base":0,"training":"Unusable"},"heavy_weapons":{"name":"heavy_weapons","base":128,"training":"Untrained"},"light_weapons":{"name":"light_weapons","base":128,"training":"Untrained"},"finesse_weapons":{"name":"finesse_weapons","base":126,"training":"Untrained"},"missile_weapons":{"name":"missile_weapons","base":89,"training":"Untrained"},"shield":{"name":"shield","base":192,"training":"Untrained"},"dual_wield":{"name":"dual_wield","base":119,"training":"Untrained"},"recklessness":{"name":"recklessness","base":0,"training":"Unusable"},"sneak_attack":{"name":"sneak_attack","base":0,"training":"Unusable"},"dirty_fighting":{"name":"dirty_fighting","base":0,"training":"Unusable"},"summoning":{"name":"summoning","base":0,"training":"Unusable"}},"monarch":{"name":"Snow","race":1,"rank":5,"gender":1,"followers":248},"patron":{"name":"Snowone","race":10,"rank":3,"gender":1},"current_title":13,"titles":[13,433],"properties":{"6":102,"139":163,"326":1,"354":7,"355":12},"key":"a317764085af5a63240805209fe5f3bac978430d54f4136a37b7e4d6d833ba68"}':