update middleman gem

Gemfile

@@ -2,7 +2,7 @@
 # the following line to use 'https'
 source 'http://rubygems.org'
 
-gem 'middleman', '~> 3.3.2'
+gem 'middleman', '~> 3.4.0'
 gem 'middleman-blog', '~> 3.5'
 gem 'middleman-s3_sync'
 gem 'dotenv'

Gemfile.lock

@@ -9,11 +9,11 @@ GIT
 GEM
   remote: http://rubygems.org/
   specs:
-    activesupport (4.1.12)
-      i18n (~> 0.6, >= 0.6.9)
+    activesupport (4.2.5)
+      i18n (~> 0.7)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
-      thread_safe (~> 0.1)
+      thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     addressable (2.3.8)
     ansi (1.5.0)
@@ -24,13 +24,17 @@ GEM
       sass (~> 3.4)
       thor
     builder (3.2.2)
-    celluloid (0.16.0)
-      timers (~> 4.0.0)
-    chunky_png (1.3.4)
+    capybara (2.4.4)
+      mime-types (>= 1.16)
+      nokogiri (>= 1.3.3)
+      rack (>= 1.0.0)
+      rack-test (>= 0.5.4)
+      xpath (~> 2.0)
+    chunky_png (1.3.5)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
-    coffee-script-source (1.9.1.1)
+    coffee-script-source (1.10.0)
     compass (1.0.3)
       chunky_png (~> 1.2)
       compass-core (~> 1.0.2)
@@ -75,43 +79,41 @@ GEM
       sprockets (~> 2.0)
       tilt (~> 1.1)
     hike (1.2.3)
-    hitimes (1.2.2)
     hooks (0.4.1)
       uber (~> 0.0.14)
     i18n (0.7.0)
     ipaddress (0.8.0)
     json (1.8.3)
-    kramdown (1.8.0)
-    listen (2.10.1)
-      celluloid (~> 0.16.0)
+    kramdown (1.9.0)
+    listen (3.0.5)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
     map (6.5.5)
-    middleman (3.3.12)
+    middleman (3.4.0)
       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 (= 3.3.12)
+      middleman-core (= 3.4.0)
       middleman-sprockets (>= 3.1.2)
       sass (>= 3.4.0, < 4.0)
       uglifier (~> 2.5)
     middleman-blog (3.5.3)
       addressable (~> 2.3.5)
       middleman-core (~> 3.2)
       tzinfo (>= 0.3.0)
-    middleman-core (3.3.12)
-      activesupport (~> 4.1.0)
+    middleman-core (3.4.0)
+      activesupport (~> 4.1)
       bundler (~> 1.1)
+      capybara (~> 2.4.4)
       erubis
       hooks (~> 0.3)
       i18n (~> 0.7.0)
-      listen (>= 2.7.9, < 3.0)
+      listen (~> 3.0.3)
       padrino-helpers (~> 0.12.3)
       rack (>= 1.4.5, < 2.0)
-      rack-test (~> 0.6.2)
       thor (>= 0.15.2, < 2.0)
       tilt (~> 1.4.1, < 2.0)
     middleman-s3_sync (3.0.47)
@@ -132,7 +134,7 @@ GEM
       rouge (~> 1.0)
     mime-types (2.6.1)
     mini_portile (0.6.2)
-    minitest (5.8.0)
+    minitest (5.8.3)
     multi_json (1.11.2)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
@@ -151,7 +153,7 @@ GEM
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
-    rb-fsevent (0.9.5)
+    rb-fsevent (0.9.6)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)
     redcarpet (3.3.2)
@@ -161,7 +163,7 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.4.4)
       nokogumbo (= 1.4.1)
-    sass (3.4.16)
+    sass (3.4.20)
     sprockets (2.12.4)
       hike (~> 1.2)
       multi_json (~> 1.0)
@@ -175,17 +177,17 @@ GEM
     thor (0.19.1)
     thread_safe (0.3.5)
     tilt (1.4.1)
-    timers (4.0.1)
-      hitimes
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    uber (0.0.14)
-    uglifier (2.7.1)
+    uber (0.0.15)
+    uglifier (2.7.2)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.1)
+    xpath (2.0.0)
+      nokogiri (~> 1.3)
 
 PLATFORMS
   ruby
@@ -197,10 +199,13 @@ DEPENDENCIES
   coffee-script
   dotenv
   haml_coffee_assets
-  middleman (~> 3.3.2)
+  middleman (~> 3.4.0)
   middleman-blog (~> 3.5)
   middleman-s3_sync
   middleman-syntax
   nokogiri
   redcarpet
   sanitize
+
+BUNDLED WITH
+   1.10.6