Sync up the wsgi script of zun-api
Sync up the wsgi script of zun-api

* Setup the osprofiler as the zun-api script
* Print all the configures at startup

Change-Id: Ib5b918b8525f65e58c7c71b4e8d66af800a2ab86

kevin-zhaoshuai/zun,kevin-zhaoshuai/zun,kevin-zhaoshuai/zun