s3_website.gemspec in s3_website-3.0.0 vs s3_website.gemspec in s3_website-3.1.0

@@ -22,9 +22,10 @@
   s.add_dependency 'colored', '1.2'
   s.add_dependency 'dotenv', '~> 1.0'
 
   s.add_development_dependency 'rake', '10.1.1'
   s.add_development_dependency 'octokit', '3.1.0'
+  s.add_development_dependency 'mime-types'
 
   s.files         = `git ls-files`
                       .split("\n")
                       .reject { |f| f.match('sbt-launch.jar') } # Reject the SBT jar, as it is a big file
                       .push('resources/s3_website.jar.md5') # Include the checksum file in the gem