Gemfile in newrelic_rpm-3.7.1.180

- old
+ new

@@ -12,17 +12,21 @@
   gem "activerecord-jdbcmysql-adapter", "~>1.3.0"
   gem "activerecord-jdbcsqlite3-adapter", "~>1.3.0"
   gem "jruby-openssl"
 end
 
-platforms :mri_19, :mri_20, :rbx do
+platforms :ruby do
   gem "mysql"
   gem "sqlite3-ruby"
   gem "sqlite3"
 end
 
 platforms :rbx do
   gem "rubysl"
+  gem "rubysl-json"
+  # If we don't skip the require here, test-unit tries to install its at_exit
+  # hook and run when we run our rake task to create the test DB.
+  gem "rubysl-test-unit", :require => false
   gem "racc"  # https://github.com/rubinius/rubinius/issues/2632
 end
 
 gem "newrelic_rpm", :path => "../../.."