Update sanitize gem

Gemfile

@@ -27,7 +27,6 @@ gem "patron",                  "~>0.4"
 gem "rinku",                   "~>1.7"
 gem "hiredis",                 "~>0.5"
 gem "redis",                   "~>3.0", require: ["redis/connection/hiredis", "redis"]
-gem "sanitize",                "~>2.1"
 gem "sitemap_generator",       "~>2.1"
 gem "state_machine",           "~>1.2"
 

Gemfile.lock

@@ -97,6 +97,7 @@ GEM
       execjs
     coffee-script-source (1.9.1)
     columnize (0.9.0)
+    crass (1.0.1)
     daemons (1.2.2)
     database_cleaner (1.4.1)
     debug_inspector (0.0.2)
@@ -158,14 +159,14 @@ GEM
     highline (1.7.1)
     hike (1.2.3)
     hiredis (0.6.0)
-    html-pipeline-linuxfr (0.14.23)
-      activesupport (~> 4.0)
-      escape_utils (~> 1.0)
-      nokogiri (~> 1.4)
+    html-pipeline-linuxfr (0.14.24)
+      activesupport (~> 4.2)
+      escape_utils (~> 1.1)
+      nokogiri (~> 1.6)
       patron (~> 0.4)
       pygments.rb (~> 0.5)
-      redcarpet (~> 3.1)
-      sanitize (~> 2.0)
+      redcarpet (~> 3.2)
+      sanitize (~> 3.1)
     html_spellchecker (0.1.7)
       hunspell-ffi (= 0.1.3)
       nokogiri (~> 1.4)
@@ -218,6 +219,8 @@ GEM
       net-ssh (>= 2.6.5)
     nokogiri (1.6.5)
       mini_portile (~> 0.6.0)
+    nokogumbo (1.2.0)
+      nokogiri
     orm_adapter (0.5.0)
     patron (0.4.20)
     posix-spawn (0.3.11)
@@ -294,8 +297,10 @@ GEM
       rspec-support (~> 3.2.0)
     rspec-support (3.2.2)
     ruby-progressbar (1.7.5)
-    sanitize (2.1.0)
+    sanitize (3.1.2)
+      crass (~> 1.0.1)
       nokogiri (>= 1.4.4)
+      nokogumbo (= 1.2.0)
     sass (3.4.13)
     sass-rails (5.0.3)
       railties (>= 4.0.0, < 5.0)
@@ -401,7 +406,6 @@ DEPENDENCIES
   redis-activesupport (~> 4.0)
   rinku (~> 1.7)
   rspec-rails (~> 3.2)
-  sanitize (~> 2.1)
   sass-rails (~> 5.0)
   sitemap_generator (~> 2.1)
   spring