1. Gems need to be installed before we can run the
  gitlab:workhorse:install task
1. Update gitlab-shell after gitlab-workhorse since it's a manual step
  that needs to be done in `/home/git/gitlab-shell`
Signed-off-by: NRémy Coutable <remy@rymai.me>

The task will use the canonical repo and the required version.
Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

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

[ci skip]
Signed-off-by: NRémy Coutable <remy@rymai.me>

Fixes Go 1.5 compatibility.

With the introduction of repository storages validations it becomes
necessary to add the flag `SKIP_STORAGE_VALIDATION` to the gitlab-shell
install command, since that command will create the storage paths

[ci skip]
Signed-off-by: NRémy Coutable <remy@rymai.me>

[ci skip]

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.

We will trust redis configuration params loading to Gitlab::RedisConfig.

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

[ci skip]

This reverts commit 3e991230.

# Conflicts:
#	app/models/project.rb

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