This patch makes the following changes to the environment api-ref:
- Adds an environment overview
- Removes 500 error codes (any endpoint can arguably throw a 500
but a 500 is not an expected error code)
- Adds additional status codes that can be returned by endpoints
- Updates deprecated response bodies
Also adds X-Openstack-Request-Id to response parameters throughout
the murano api docs that are currently missing it.
Change-Id: I77f88a29639bae6612a46e800444e9b34485c2af