Merge branch 'gitlab-grack-2.0.1' into 'master'

Update gitlab-grack to 2.0.1 to get unicorn to stop creating zombies.

Addresses #1461 and private issue https://dev.gitlab.org/gitlab/gitlabhq/issues/2253.

This regression was introduced between 7.9 and the 7.10 rcs, so no changelog item for 7.10 proper.

cc @JobV @jacobvosmaer

See merge request !546

Gemfile

@@ -42,7 +42,7 @@ gem "browser"
 gem "gitlab_git", '~> 7.1.10'
 
 # Ruby/Rack Git Smart-HTTP Server Handler
-gem 'gitlab-grack', '~> 2.0.0.rc2', require: 'grack'
+gem 'gitlab-grack', '~> 2.0.1', require: 'grack'
 
 # LDAP Auth
 gem 'gitlab_omniauth-ldap', '1.2.1', require: "omniauth-ldap"

Gemfile.lock

@@ -199,7 +199,7 @@ GEM
     gitlab-flowdock-git-hook (0.4.2.2)
       gitlab-grit (>= 2.4.1)
       multi_json
-    gitlab-grack (2.0.0)
+    gitlab-grack (2.0.1)
       rack (~> 1.5.1)
     gitlab-grit (2.7.2)
       charlock_holmes (~> 0.6)
@@ -700,7 +700,7 @@ DEPENDENCIES
   gemnasium-gitlab-service (~> 0.2)
   github-markup
   gitlab-flowdock-git-hook (~> 0.4.2)
-  gitlab-grack (~> 2.0.0.rc2)
+  gitlab-grack (~> 2.0.1)
   gitlab-linguist (~> 3.0.1)
   gitlab_emoji (~> 0.1)
   gitlab_git (~> 7.1.10)