Fix project version and GOPATH-based version issues
Fix project version and GOPATH-based version issues

Problem: Circle checks out repo at $HOME/go-util, go get also
pulls go-util and puts it in the GOPATH
(.go_workspace/src/github.com/AchievementNetwork/go-util). When running
the tests, the GOPATH version of the go-util package supersedes those of
$HOME/go-util and therefore does not have the updates being referenced.

Fix: Copy the checked-out version in $HOME/go-util to the GOPATH version
of go-util and then test.

AchievementNetwork/go-util