Gemfile in s3_website-1.7.4 vs Gemfile in s3_website-1.7.5

@@ -1,3 +1,5 @@
 source "http://rubygems.org"
 
 gemspec
+gem "filey-diff", :git => 'https://github.com/concord-consortium/filey-diff.git',
+                  :branch => 'fast-diff'
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