Updateded verify-golint.sh to match origin's one and fixed the golint errors
Merge pull request #99 from soltysh/golint

Merged by openshift-bot
Moved sti types.go to its own package and added separate type for script names (for stronger type checking).
Card devexp_416 - Removed the need for sti-helper. The untarring is done
on the fly when calling assemble script. Also added additional parameter
that can steer the location of untarred contents. Adding additional step
for images not having tar, we'll be uploading the scripts and sources as
a new layer and then proceed with the regular build.