Updated docs in 5-1-stable. Fixes #3757 and #3639.

Created by: axilleas

• New mysql privilege: There has been added a new permission in 5.1 that isn't included on update.md. Without that, backup fails. See this forum post.
• Fixed path for init.d/gitlab in rake check. Fixes #3757 (closed).
• On a new installation create tmp/sockets directory. Fixes #3639 (closed).

doc/install/installation.md

@@ -158,11 +158,13 @@ do so with caution!
     # Create directory for satellites
     sudo -u git -H mkdir /home/git/gitlab-satellites
-    # Create directory for pids and make sure GitLab can write to it
+    # Create directories for sockets/pids and make sure GitLab can write to them
     sudo -u git -H mkdir tmp/pids/
+    sudo -u git -H mkdir tmp/sockets/
     sudo chmod -R u+rwX  tmp/pids/
-    # Copy the example Of Puma config
+    sudo chmod -R u+rwX  tmp/sockets/
+    # Copy the example of Puma config
     sudo -u git -H cp config/puma.rb.example config/puma.rb
 **Important Note:**