I am removing the expvar handler, this is uncessary to me. I was using
the goji/httpauth package to authenticate this handler, so, I am
removing the dependency too.
Golang community are discuting a vendor aproach to go dependencies. This
change will come as experimental in go 1.5. For now I am removing the
godep dependency manager and using a vendor aproach.
I still have to use the full path when importing dependencies, but when
go1.5 released I just have to rename the imports and use a -vendor
prefix when building the project.