Fix missing requires & move React::Children back

Author: zetachang

lib/react/component/dsl_instance_methods.rb

@@ -1,40 +1,10 @@
+require "react/children"
+
 module React
   module Component
     module DslInstanceMethods
       def children
-        if `#{@native}.props.children==undefined`
-          nodes = []
-        else
-          nodes = [`#{@native}.props.children`].flatten
-        end
-        class << nodes
-          include Enumerable
-
-          def to_n
-            self
-          end
-
-          def each(&block)
-            if block_given?
-              %x{
-                    React.Children.forEach(#{self.to_n}, function(context){
-              #{yield React::Element.new(`context`)}
-                    })
-              }
-              nil
-            else
-              Enumerator.new(`React.Children.count(#{self.to_n})`) do |y|
-                %x{
-                      React.Children.forEach(#{self.to_n}, function(context){
-                #{y << Element.new(`context`)}
-                      })
-                }
-              end
-            end
-          end
-        end
-
-        nodes
+        Children.new(`#{@native}.props.children`)
       end
 
       def params

lib/reactive-ruby.rb

@@ -21,6 +21,8 @@
   require 'react/top_level'
   require 'react/observable'
   require 'react/component'
+  require 'react/component/dsl_instance_methods'
+  require 'react/component/tags'
   require 'react/component/base'
   require 'react/element'
   require 'react/event'