Fix typo in smtp_settings.rb.sample
Merge pull request #4114 from damselem/patch-1

Fix typo in smtp_settings.rb.sample
init.d: Ensure socket is removed before starting service
Fix dashboard event filter when navigate via turbolinks
Fix postgres error when displaying network graph.

fix #4149
Do not render project events since we render them again via ajax request
Update gitlab-grack. Fixes issue with --depth option
Fix dashboard lost if comment on commit
v5.2.1
Fix pygment lexer 500 errors when an alias is used instead of a name.