update gitlab-elastic-search gem

Gemfile

@@ -101,7 +101,7 @@ gem "seed-fu", '~> 2.3.5'
 # Search
 gem 'elasticsearch-model'
 gem 'elasticsearch-rails'
-gem 'gitlab-elasticsearch-git', '~> 0.0.11', require: "elasticsearch/git"
+gem 'gitlab-elasticsearch-git', '~> 0.0.12', require: "elasticsearch/git"
 
 # Markdown and HTML processing
 gem 'html-pipeline', '~> 1.11.0'

Gemfile.lock

@@ -355,7 +355,7 @@ GEM
       mime-types (>= 1.19)
       rugged (>= 0.24.0b13)
     github-markup (1.3.3)
-    gitlab-elasticsearch-git (0.0.11)
+    gitlab-elasticsearch-git (0.0.12)
       activemodel (~> 4.2)
       activesupport (~> 4.2)
       charlock_holmes (~> 0.7)
@@ -963,7 +963,7 @@ DEPENDENCIES
   gemnasium-gitlab-service (~> 0.2)
   github-linguist (~> 4.7.0)
   github-markup (~> 1.3.1)
-  gitlab-elasticsearch-git (~> 0.0.11)
+  gitlab-elasticsearch-git (~> 0.0.12)
   gitlab-flowdock-git-hook (~> 1.0.1)
   gitlab-license (~> 0.0.4)
   gitlab_emoji (~> 0.3.0)