Bump activesupport from 4.1.8 to 4.1.11

Gemfile.lock

@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.1.8)
+    activesupport (4.1.11)
       i18n (~> 0.6, >= 0.6.9)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -18,6 +18,7 @@ GEM
     coffee-script-source (1.8.0)
     colorator (0.1)
     colored (1.2)
+    concurrent-ruby (1.1.5)
     configure-s3-website (1.6.0)
       deep_merge (= 1.0.0)
     deep_merge (1.0.0)
@@ -29,7 +30,8 @@ GEM
       dotenv (~> 1.0.2)
       thor (~> 0.19.1)
     hitimes (1.2.2)
-    i18n (0.6.11)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (2.5.2)
       classifier-reborn (~> 2.0)
       colorator (~> 0.1)
@@ -64,7 +66,7 @@ GEM
       rb-inotify (>= 0.9)
     mercenary (0.3.5)
     mini_portile (0.6.1)
-    minitest (5.4.3)
+    minitest (5.13.0)
     nokogiri (1.6.5)
       mini_portile (~> 0.6.0)
     parslet (1.5.0)
@@ -92,12 +94,12 @@ GEM
       libv8 (~> 3.16.14.0)
       ref
     thor (0.19.1)
-    thread_safe (0.3.4)
+    thread_safe (0.3.6)
     timers (4.0.1)
       hitimes
     toml (0.1.2)
       parslet (~> 1.5.0)
-    tzinfo (1.2.2)
+    tzinfo (1.2.5)
       thread_safe (~> 0.1)
     yajl-ruby (1.1.0)