Use Go 1.6.2



See merge request !46

Closes https://gitlab.com/gitlab-org/gitlab-workhorse/issues/33

This reverts commit 1fa69c8d. It
turned out that the new behavior broke 'shallow git clone'.

Closes https://gitlab.com/gitlab-org/gitlab-workhorse/issues/36

Be compatible with GOPATH



See merge request !43

Delay HTTP headers for Git HTTP responses

Alternative to https://gitlab.com/gitlab-org/gitlab-workhorse/merge_requests/38
and https://gitlab.com/gitlab-org/gitlab-workhorse/merge_requests/40 .

See merge request !42

Add test guidelines



See merge request !39

Set content-length when sending git blobs

This gives the HTTP client receiving the blob a way to detect some
transmission failures.

See merge request !41

This gives the HTTP client receiving the blob a way to detect some
transmission failures.

Handle "git archive" via headers

Companion to https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/2675

See merge request !36