More places to bump rack-test version [#3250 state:resolved]

Signed-off-by: NJoshua Peek <josh@joshpeek.com>

ci/geminstaller.yml

@@ -16,7 +16,7 @@ gems:
 - name: rack
   version: '~> 1.0.0'
 - name: rack-test
-  version: >= 0.4.2
+  version: >= 0.5.0
 - name: rake
   version: >= 0.8.1
 - name: sqlite-ruby

railties/lib/test_help.rb

@@ -4,7 +4,7 @@
 
 require 'rubygems'
 gem "rack", "~> 1.0.0"
-gem "rack-test", "~> 0.4.2"
+gem "rack-test", "~> 0.5.0"
 
 require 'test/unit'
 require 'active_support/core_ext/kernel/requires'

railties/test/abstract_unit.rb

@@ -2,7 +2,7 @@
 
 require 'rubygems'
 gem 'rack', '~> 1.0.0'
-gem 'rack-test', '~> 0.4.2'
+gem 'rack-test', '~> 0.5.0'
 
 $:.unshift File.dirname(__FILE__) + "/../../activesupport/lib"
 $:.unshift File.dirname(__FILE__) + "/../../activerecord/lib"