GoRemoteLibrary/GoFetch do not support packages in subdirectories.

[jsirois]

Some repos place all their code in one or more subpackages and this trips up GoFetch recusrsive resolution. Concretely, for a github repo with go code laid out like so:

https://github.com/pantsbuild/golibs/
  rpc/
    rpc.go
  io/
    io.go
  util/
    dir.go
    file.go

Will fail here when GoFetch tries to determine if the repo has its own remote dependencies to fetch. In general GoFetch needs to recursively glob all go files in the exploded zip package dir.

An example of this sort of repo is here: https://github.com/AdRoll/goamz

[jsirois]

Fix is in @ 91f0e27