Log Message:
Changes 2.1.0:
* language namespaces for apphooks (reverse("de:myview"), \ 
reverse("en:myview"))
* video plugin switch to http://github.com/FlashJunior/OSFlashVideoPlayer
* frontediting added (cms.middlware.toolbar.ToolbarMiddleware)
* testsuite works now under sqlite and postgres
* orphaned text embed plugins get now deleted if not referenced in the text
  anymore
* placeholder templatetag: "theme" attribute removed in favor of \ 
"width"
  (backward incompatible change if theme was used)
* menu is its own app now
* menu modifiers (you can register menu modifiers that can change menu nodes
  or rearrange them)
* menus are now class based.
* apphooks are now class based and can bring multiple menus and urls.py with
  them.
* menus and apphooks are auto-discovered now
* example templates look a lot better now.
* languages are not a dropdown anymore but fancy tabs
* placeholderend templatetag added: {% placeholder "content" %}There is no
  content here{% endplaceholder %}
* plugins can now be used in other apps :) see cms/docs/placeholders.txt
* plugins can now be grouped
* a lot of bugfixes
* the cms now depends on the cms.middleware.media.PlaceholderMediaMiddleware
  middleware
* templatetags refactored: see cms/docs/templatetags.txt for new signatures.
* placeholder has new option: or and a endpalceholder templatetag