Bump autoprefixer-rails

Gemfile

@@ -55,7 +55,7 @@ gem "rack-cors", "0.4.0", require: "rack/cors"
 gem "bootstrap-sass", "3.3.7"
 gem "compass-rails",  "2.0.5"
 gem "sass-rails",     "5.0.6"
-gem "autoprefixer-rails", "6.5.1"
+gem "autoprefixer-rails", "6.7.6"
 gem "bootstrap-switch-rails", "3.3.3"
 
 # Database

Gemfile.lock

@@ -55,7 +55,7 @@ GEM
       unf
     ast (2.3.0)
     attr_required (1.0.1)
-    autoprefixer-rails (6.5.1)
+    autoprefixer-rails (6.7.6)
       execjs
     bcrypt (3.1.11)
     bindata (2.3.1)
@@ -791,7 +791,7 @@ DEPENDENCIES
   acts_as_api (= 1.0.0)
   addressable (= 2.4.0)
   asset_sync (= 2.0.0)
-  autoprefixer-rails (= 6.5.1)
+  autoprefixer-rails (= 6.7.6)
   bootstrap-sass (= 3.3.7)
   bootstrap-switch-rails (= 3.3.3)
   capybara (= 2.10.1)