rails-4.2.gemfile in appsignal-1.2.3.beta.1

- old
+ new

@@ -1,7 +1,7 @@
 source 'https://rubygems.org'
 
 gem 'rails', '~> 4.2.0'
-
+gem 'rack', '~> 1.6.4'
 gem 'mime-types', '~> 2.6'
 
 gemspec :path => '../'