Add bundler lock

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    entitlements-app (0.1.7)
+    entitlements-app (0.1.8)
       concurrent-ruby (= 1.1.9)
       contracts (= 0.16.0)
       net-ldap (~> 0.17.0)
@@ -109,3 +109,6 @@ DEPENDENCIES
   simplecov-erb (= 0.1.1)
   vcr (= 4.0.0)
   webmock (= 3.4.2)
+
+BUNDLED WITH
+   2.3.15