Extends child_pages macro to display child pages based on page parameter (#1975).

It can also be called from anywhere now (not only from wiki pages).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2053 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/fixtures/wiki_pages.yml

@@ -27,4 +27,18 @@ wiki_pages_004:
   wiki_id: 1
   protected: false
   parent_id: 1
+wiki_pages_005: 
+  created_on: 2007-03-08 00:18:07 +01:00
+  title: Child_1
+  id: 5
+  wiki_id: 1
+  protected: false
+  parent_id: 2
+wiki_pages_006: 
+  created_on: 2007-03-08 00:18:07 +01:00
+  title: Child_2
+  id: 6
+  wiki_id: 1
+  protected: false
+  parent_id: 2