Gemfile: Add 'htmlbeautifier' in :test group

Want a way to beautify HTML to get better diffs in the
`TableBuilderHelper` spec. Beautifying the HTML allows us to do line
comparisons of the HTML that results from the builder.

Refs #3479

1 files changed, 1 insertions, 0 deletions

diff --git a/Gemfile b/Gemfile
index 55e88f78a..6520f73de 100644
--- a/Gemfile
+++ b/Gemfile
@@ -159,6 +159,7 @@ group :test do
   gem 'cucumber-rails', require: false
   gem 'simplecov', :require => false
   gem 'simplecov-rcov', :require => false
+  gem 'htmlbeautifier'
 end
 
 group :test, :development, :dev do