Added nginx module
Renamed nginx to nginx2
Updated readme
Merge branch 'master' of github.com:cargomedia/bipbip into issue-11
Renamed back to 'nginx' as it works
Updated readme
Dropped hostname
Raise error if response is not 200
Updated metric_identifier
Merge pull request #11 from kris-lab/issue-11

Add nginx module
Merge branch 'master' of github.com:cargomedia/bipbip into issue-23

Conflicts:
	README.md