Update gems

Gemfile.lock

 GEM
   remote: http://rubygems.org/
   specs:
-    activesupport (4.1.9)
+    activesupport (4.1.10)
       i18n (~> 0.6, >= 0.6.9)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -10,10 +10,10 @@ GEM
     celluloid (0.16.0)
       timers (~> 4.0.0)
     chunky_png (1.3.4)
-    coffee-script (2.3.0)
+    coffee-script (2.4.1)
       coffee-script-source
       execjs
-    coffee-script-source (1.9.1)
+    coffee-script-source (1.9.1.1)
     compass (1.0.3)
       chunky_png (~> 1.2)
       compass-core (~> 1.0.2)
@@ -27,8 +27,8 @@ GEM
     compass-import-once (1.0.5)
       sass (>= 3.2, < 3.5)
     erubis (2.7.0)
-    execjs (2.4.0)
-    ffi (1.9.6)
+    execjs (2.5.2)
+    ffi (1.9.8)
     haml (4.0.6)
       tilt
     hike (1.2.3)
@@ -37,24 +37,24 @@ GEM
       uber (~> 0.0.4)
     i18n (0.7.0)
     json (1.8.2)
-    kramdown (1.6.0)
+    kramdown (1.7.0)
     libv8 (3.16.14.7)
-    listen (2.8.5)
-      celluloid (>= 0.15.2)
+    listen (2.10.0)
+      celluloid (~> 0.16.0)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
-    middleman (3.3.10)
+    middleman (3.3.11)
       coffee-script (~> 2.2)
       compass (>= 1.0.0, < 2.0.0)
       compass-import-once (= 1.0.5)
       execjs (~> 2.0)
       haml (>= 4.0.5)
       kramdown (~> 1.2)
-      middleman-core (= 3.3.10)
+      middleman-core (= 3.3.11)
       middleman-sprockets (>= 3.1.2)
       sass (>= 3.4.0, < 4.0)
       uglifier (~> 2.5)
-    middleman-core (3.3.10)
+    middleman-core (3.3.11)
       activesupport (~> 4.1.0)
       bundler (~> 1.1)
       erubis
@@ -76,7 +76,7 @@ GEM
     middleman-syntax (2.0.0)
       middleman-core (~> 3.2)
       rouge (~> 1.0)
-    minitest (5.5.1)
+    minitest (5.6.1)
     multi_json (1.11.0)
     padrino-helpers (0.12.5)
       i18n (~> 0.6, >= 0.6.7)
@@ -91,7 +91,7 @@ GEM
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)
-    redcarpet (3.2.2)
+    redcarpet (3.2.3)
     ref (1.0.5)
     rouge (1.8.0)
     sass (3.4.13)
@@ -105,11 +105,11 @@ GEM
     sprockets-sass (1.3.1)
       sprockets (~> 2.0)
       tilt (~> 1.1)
-    therubyracer (0.12.1)
+    therubyracer (0.12.2)
       libv8 (~> 3.16.14.0)
       ref
     thor (0.19.1)
-    thread_safe (0.3.4)
+    thread_safe (0.3.5)
     tilt (1.4.1)
     timers (4.0.1)
       hitimes