How to debug Warden Services

Conversion from https://docs.google.com/document/d/1c8BRdxhphcVOmzPbOYJ_4pXlDLTIXrbyUgeMKilA3LY/edit
From the CF Services team
Merge pull request #88 from drnic/warden

How to debug Warden Services

Nic, services are going to go through some changes since this original documentation was first written. However, the warden troubleshooting part of this is great. The doc team will have to probably edit this and find the best place for this information in the TOC, but it's better to have it in cf-docs now as-is and be able to make it more accurate as the updated services are published, then to only have it in GDocs.