Merge pull request #52 from okfn/2634-changelog-update

[#2634] add restricted template vars to change log

CHANGELOG.txt

@@ -23,6 +23,13 @@ v1.8
 * [#2345] New action API reference docs. The documentation for CKAN's Action
   API has been rewritten, with each function and its arguments and return
   values now individually documented.
+* Template helper functions are now restricted by default. This is
+  part of a process of refactoring the CKAN code. By default only
+  those helper functions listed in lib.helpers.__allowed_functions__
+  are available to templates. The full functions can still be made
+  available by `setting ckan.restrict_template_vars = false` in your
+  .ini config file. Only restricted functions will be allowed in
+  future versions of CKAN.
 
 v1.7.1 2012-06-20
 =================