Updated API support

[stefanius]

In april you planned to remove some deprecated endpoints: https://forum.asana.com/t/upcoming-changes-that-impact-getting-and-setting-memberships-and-access-levels/232106

However, I cant find the new endpoints or an alternative in this client. Did I mis this or is there an update scheduled for the PHP client?

[alloylab]

@stefanius php sdk is out date... still have never gotten a response on how to handle this deprecation #88

[stefanius]

@stefanius php sdk is out date... still have never gotten a response on how to handle this deprecation #88

Thank you for your reply. I was already affraid that this is de case.

[lbattaglioli2000]

Still seems out of date...

Does anyone know how to go about handling this? I can try and do a PR, I just am not sure how to resolve this API deprecation...