feat(event): Derby Day mount

common/locales/en/pets.json

@@ -13,6 +13,7 @@
     "hydra": "Hydra",
     "mantisShrimp": "Mantis Shrimp",
     "mammoth": "Woolly Mammoth",
+    "orca": "Orca",
     "rarePetPop1": "Click the gold paw to learn more about how you can obtain this rare pet through contributing to HabitRPG!",
     "rarePetPop2": "How to Get this Pet!",
     "potion": "<%= potionType %> Potion",

common/script/content.coffee

@@ -1012,6 +1012,7 @@ api.specialMounts =
   'MantisShrimp-Base':  'mantisShrimp'
   'Turkey-Base':        'turkey'
   'Mammoth-Base':       'mammoth'
+  'Orca-Base':          'orca'
 
 api.hatchingPotions =
   Base:             value: 2, text: t('hatchingPotionBase')

migrations/20150706_orca_mounts.js

@@ -0,0 +1,8 @@
+/**
+ * Created by Sabe on 7/6/2015.
+ */
+db.users.update(
+  {},
+  {$set:{'items.mounts.Orca-Base':true}},
+  {multi:true}
+);