Create the concept of "page types" which let us specify the kind of
page that we're rendering in high level terms. Currently there are
three page types: album, photo and tag.
The tag page type uses slightly different variables. It has a $tag
but no $item. Adjust all sidebar_block() functions to avoid printing
stuff that's dependent on the item if there is no item.
Simplify the tag code to stop trying to fake an item.
Update the theme slightly to use $item and $tag where appropriate
(notably, for making the <title> element).
* Media_RSS_Controller::$LIMIT is now self::$page_size
* We use ORM_MPTT descendant_counts()
* If the page is out of bounds, put it on a boundary
* Move pub_date into the controller to simplify the mrss file
* Put all the view assignment in one block for easier reading
* Removed stray ; from the end of lines in the mrss file
Clean up ORM_MPTT a bit:
* fix spelling: decendent -> descendant
* Remove unnecessary order_by() clauses
* Set the default for $type to null (not "all").
doesn't refer to a fixed resource or collection of resources.
Fix some minor bugs in the code so that we can actually generate a
feed. It looks pretty cool! Improved pagination links, but didn't actually test them.
1) added a mime_type property to the item module(no database change)
2) created a media_rss module
3) moved most of the functionality for the downloading the images to the media_rss module
