Bundle update

Gemfile.lock

@@ -1,6 +1,6 @@
 GIT
   remote: git://github.com/activeadmin/activeadmin.git
-  revision: e558e8c08e8c5d625a2d01369bfe2704cecdc296
+  revision: 9d0557ad05ece0da59a4df2c61468479093686a1
   specs:
     activeadmin (1.0.0)
       arbre (>= 1.1.1)
@@ -211,8 +211,8 @@ GEM
       has_scope (~> 0.6)
       railties (>= 3.2, < 5.2.x)
       responders
-    jbuilder (2.6.4)
-      activesupport (>= 3.0.0)
+    jbuilder (2.7.0)
+      activesupport (>= 4.2.0)
       multi_json (>= 1.2)
     jquery-rails (4.3.1)
       rails-dom-testing (>= 1, < 3)
@@ -244,7 +244,7 @@ GEM
     loofah (2.0.3)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.12)
-    mail (2.6.5)
+    mail (2.6.6)
       mime-types (>= 1.16, < 4)
     memoizable (0.4.2)
       thread_safe (~> 0.3, >= 0.3.1)
@@ -254,7 +254,7 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.2.0)
     minitest (5.10.2)
     modernizr-rails (2.7.1)
     multi_json (1.12.1)
@@ -262,8 +262,8 @@ GEM
     mysql2 (0.4.6)
     naught (1.1.0)
     nenv (0.3.0)
-    nokogiri (1.7.2)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.8.0)
+      mini_portile2 (~> 2.2.0)
     notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)