Bump activesupport from 4.1.7 to 4.1.11

Gemfile.lock

@@ -1,13 +1,14 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.1.7)
+    activesupport (4.1.11)
       i18n (~> 0.6, >= 0.6.9)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
       thread_safe (~> 0.1)
       tzinfo (~> 1.1)
     coderay (1.1.0)
+    concurrent-ruby (1.1.7)
     domain_name (0.5.20160310)
       unf (>= 0.0.5, < 1.0.0)
     dotenv (0.11.1)
@@ -18,14 +19,15 @@ GEM
       thor (~> 0.19.1)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
-    i18n (0.6.11)
-    json (1.8.3)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    json (1.8.6)
     mailgun-ruby (1.1.0)
       json (~> 1.8)
       rest-client (~> 1.6)
     method_source (0.8.2)
     mime-types (2.99.1)
-    minitest (5.4.3)
+    minitest (5.14.1)
     netrc (0.11.0)
     pry (0.10.1)
       coderay (~> 1.1.0)
@@ -38,8 +40,8 @@ GEM
       netrc (~> 0.7)
     slop (3.6.0)
     thor (0.19.1)
-    thread_safe (0.3.4)
-    tzinfo (1.2.2)
+    thread_safe (0.3.6)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext