Call `YAML.load` correctly

We should call methods with `.method_name` not `::method_name`. Fix two
instances of `YAML::load` I found in favor of `YAML.load`.

activerecord/lib/active_record/railties/databases.rake

@@ -229,7 +229,7 @@ db_namespace = namespace :db do
       base_dir = ActiveRecord::Tasks::DatabaseTasks.fixtures_path
 
       Dir["#{base_dir}/**/*.yml"].each do |file|
-        if data = YAML::load(ERB.new(IO.read(file)).result)
+        if data = YAML.load(ERB.new(IO.read(file)).result)
           data.each_key do |key|
             key_id = ActiveRecord::FixtureSet.identify(key)
 

activesupport/lib/active_support/xml_mini.rb

@@ -79,7 +79,7 @@ def content_type
         end,
         "boolean"      => Proc.new { |boolean| %w(1 true).include?(boolean.to_s.strip) },
         "string"       => Proc.new { |string|  string.to_s },
-        "yaml"         => Proc.new { |yaml|    YAML::load(yaml) rescue yaml },
+        "yaml"         => Proc.new { |yaml|    YAML.load(yaml) rescue yaml },
         "base64Binary" => Proc.new { |bin|     ::Base64.decode64(bin) },
         "binary"       => Proc.new { |bin, entity| _parse_binary(bin, entity) },
         "file"         => Proc.new { |file, entity| _parse_file(file, entity) }