fix(accounts): Load accounts before adding a new one

src/flux/stores/account-store.coffee

@@ -129,6 +129,7 @@ class AccountStore
       console.log JSON.stringify(json)
       throw new Error("Returned account data is invalid")
     return if @_tokens[json.id]
+    @_load()
     @_tokens[json.id] = json.auth_token
     @_accounts.push((new Account).fromJSON(json))
     @_save()