Renamed the SanitizerTest class to SanitersTest, to remove the conflict with...

Renamed the SanitizerTest class to SanitersTest, to remove the conflict with the old SanitizerTest for html-scanner.

actionview/test/template/sanitizers_test.rb

 require 'abstract_unit'
 
-class SanitizerTest < ActionController::TestCase
+class SanitizersTest < ActionController::TestCase
   def setup
     @sanitizer = nil # used by assert_sanitizer
   end