v1.0.0 was mistakenly tagged with a lightweight, rather than annotated, tag,
which caused compiled versions of workhorse to wrongly report their version.

Fixes Go 1.5 compatibility.

Fixes rejected API git archive extensions; improves Sentry errors.

This adds (basic) Sentry support.

Versions 0.7.9 and 0.7.10 crash on previously valid 'authBackend'
settings.

This reverts commit 3e991230.

# Conflicts:
#	app/models/project.rb

This enables
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/4278 .

We found out that 0.7.2 breaks shallow `git clone`. GitLab 8.7 will
work fine with gitlab-workhorse 0.7.1 too.

Fix for #12634 has been introduced in gitlab-org/gitlab-workhorse!34.

Fixes routing errors for /api/v3/projects/