oauth.go

- removing the needs to client secret as a configuration optoin
- cleaning up the logging messages
- adding the X-Forwarded-Host header to the upstream
- cleaning up some of the method names
- fixed the path bug in the unix domain upstream socket
- added the oxy package to the godeps
- updating the godeps for go-oidc package
- removing the default settings for redirection url and upstream url
- adding the proxy protocol support
- updating the git+sha to include the dirty flag
- updated the godeps for cli package
- using the cli exiterror for errors
- added the options to set the upstream timeout and keepalive options
- cleaning up methods names
- adding the proxy protocol to godeps
- adding the goproxy package to godeps
- switching to using the goproxy package for reverse proxying
- moved the proxy header into a seperate middleware handler
- adding the mocking of a oauth service
- adding the forwarding proxy
- changing the state parameter to base64 encoding to permit extended urls
- added the forwarding agent support
- updating the readme