Convert recurly_hosted routing implementation to follow model adopted in recurly

What part of the model should we follow? What needs to change? I think we need a description here.

I tested this by going directly to (/user/1/subscription/billing) and it threw an error: Recoverable fatal error: Argument 1 passed to recurly_hosted_account_manage_url() must be of the type array, object given,. So I checked out what was calling recurly_hosted_account_manage_url() and found it was passing in an object as the error claimed. So I changed the type hinting for the recurly_hosted_account_manage_url() function.

Below are the two locations that call recurly_hosted_account_manage_url(), and neither seem to pass in an array.

if ($url = recurly_hosted_account_manage_url($recurly_account, TRUE)) {

return recurly_hosted_account_manage_url($context['account'], TRUE);

Once I fixed that, this redirected successfully. However, the URL it sent me to was a 404. Is that a known issue, or am I testing this incorrectly?

The edit buttons at "/admin/config/services/recurly/subscription-plans" seem to work just fine.

Perhaps this is the issue? Should RecurlyHostedAccountRedirectController be calling recurly_hosted_account_manage_url? or should it be calling recurly_hosted_subscription_plan_purchase_url?