Expand documentation for things in params.go
Expand documentation for things in params.go

rgbkrk/gophercloud,jamiehannaford/gophercloud,carolynvs/gophercloud,trumant/gophercloud,DSpeichert/gophercloud,timbyr/gophercloud,sti-jans/gophercloud,rackspace/gophercloud,dudymas/gophercloud,clintonskitson/gophercloud,trumant/gophercloud,clintonskitson/gophercloud,larsbutler/gophercloud,timbyr/gophercloud,feiskyer/gophercloud,rgbkrk/gophercloud,jamiehannaford/gophercloud,carolynvs/gophercloud,pratikmallya/gophercloud,DSpeichert/gophercloud,rackspace/gophercloud,pratikmallya/gophercloud,jarosser06/gophercloud,jarosser06/gophercloud,sti-jans/gophercloud,dudymas/gophercloud,feiskyer/gophercloud,larsbutler/gophercloud