Added godoc user and started godoc webserver

Added chefspec tests for adding godoc user and setting up runit
Added serverspec integration tests

Updated runit cookbook version so that chefspec matchers are
included with the cookbook.

Added attributes to customize godoc user and godoc user's homedir
Added nginx proxy config

Created chefspec tests
Created serverspec tests
Added template for godoc nginx config
Added resources to godoc::nginx-proxy to setup nginx if the
node["godoc"]["nginx-proxy"] attribute is set to 'true'
Merge pull request #2 from CrowdSurge/james

James