update gitlab_git

Gemfile

@@ -38,7 +38,7 @@ gem "browser", '~> 0.8.0'
 # Extracting information from a git repository
 # Provide access to Gitlab::Git library
-gem "gitlab_git", path: "../gitlab_git"
+gem "gitlab_git", '~> 7.2.12'
 # Ruby/Rack Git Smart-HTTP Server Handler
 # GitLab fork with a lot of changes (improved thread-safety, better memory usage etc)

Gemfile.lock

-PATH
-  remote: ../gitlab_git
-  specs:
-    gitlab_git (7.2.12)
-      activesupport (~> 4.0)
-      charlock_holmes (~> 0.6)
-      gitlab-linguist (~> 3.0)
-      rugged (~> 0.22.2)
-
 GEM
   remote: https://rubygems.org/
   specs:
@@ -280,6 +271,11 @@ GEM
       mime-types (~> 1.19)
     gitlab_emoji (0.1.0)
       gemojione (~> 2.0)
+    gitlab_git (7.2.12)
+      activesupport (~> 4.0)
+      charlock_holmes (~> 0.6)
+      gitlab-linguist (~> 3.0)
+      rugged (~> 0.22.2)
     gitlab_meta (7.0)
     gitlab_omniauth-ldap (1.2.1)
       net-ldap (~> 0.9)
@@ -787,7 +783,7 @@ DEPENDENCIES
   gitlab-grack (~> 2.0.2)
   gitlab-linguist (~> 3.0.1)
   gitlab_emoji (~> 0.1)
-  gitlab_git!
+  gitlab_git (~> 7.2.12)
   gitlab_meta (= 7.0)
   gitlab_omniauth-ldap (= 1.2.1)
   gollum-lib (~> 4.0.2)