Merge pull request #900 from github/dependabot/bundler/sass-3.7.4

Bump sass from 3.7.3 to 3.7.4

Author: talsafran

Gemfile.lock

@@ -233,7 +233,7 @@ GEM
     ruby_dep (1.5.0)
     rubyzip (1.2.2)
     safe_yaml (1.0.5)
-    sass (3.7.3)
+    sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)