Fix nginx.servers_config

[myii]

Found this while reviewing #238 (comment).

This entry point is defined in the README but when called, results in the error:

Cannot extend ID 'nginx_service' in 'base:nginx.servers_config'. It is not part of the high state.

The workaround is to comment out these two lines:

nginx-formula/nginx/servers_config.sls

Lines 116 to 117 in b9f78aa

	- require_in:
	- service: nginx_service

[waynegemmell]

Hi

This is still an issue for us. Any updates?

[waynegemmell]

I've disabled the mentioned lines, it fixes the problem as promised. I'd like the final solution to not include forcing the installation of nginx. My use case is just the config, the server installation gets in the way,