Merge branch '83-follow-up-from-handle-gl_repository-env-variable-and-use-it-in-api-calls' into 'master'

Use gl_repository if present when enqueing Sidekiq PostReceive jobs

Closes #83

See merge request !132

Use gitaly-upload-pack and gitaly-receive-pack

Closes gitaly#193

See merge request !129

Handle GL_REPOSITORY env variable and use it in api calls

See merge request !130

Use a shorter socket path during testing

See merge request !131

Use recursive lookup for git repositories in the bin/create-hooks script

Closes #82

See merge request !128

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Add hello-world Go executable and gitaly-proto 0.5.0

Closes gitaly#186

See merge request !127

Explain how to release a new version

See merge request !126

adds timeout option to push branches and respective test suite

See merge request !124

Fetch repositories with --quiet option by default

See merge request !125

This will allow us to prevent deadlocks when dealing with extremely
long outputs from `git fetch`. All the pipes (stdin, stdout, and
stderr) have limited buffers, and when one fills up, everything is
going to stop.

Remove git annex support

See merge request !122

Add gitaly notification on post-receive hook

See merge request !119