Gemfile in netsuite-0.8.3 vs Gemfile in netsuite-0.8.4

@@ -4,8 +4,11 @@
 gem 'simplecov', :require => false
 
 gem 'pry-nav'
 gem 'pry-rescue'
 
+# optional dependency for more accurate timezone conversion
+gem 'tzinfo'
+
 # required for CircleCI to build properly with ruby 1.9.3
 gem 'json', '~> 1.8.3'
 gem 'rack', '~> 1.6.4'