rails4_mysql2.gemfile in ddtrace-0.11.4

- old
+ new

@@ -2,9 +2,9 @@
 
 source "https://rubygems.org"
 
 gem "pry-nav", git: "https://github.com/nixme/pry-nav.git", branch: "master"
 gem "rails", "4.2.7.1"
-gem "mysql2", platform: :ruby
+gem "mysql2", "< 0.5", platform: :ruby
 gem "activerecord-jdbcmysql-adapter", platform: :jruby
 
 gemspec path: "../"