-## usage
-
-Here are descriptions of all the supported parameters to the `aggregate`
-directive:
-
-* `name` - A name for the feed. Each feed must have a unique name.
- Required.
-* `url` - The url to the web page for the feed that's being aggregated.
- Required.
-* `dir` - The directory in the wiki where pages should be saved. Optional,
- if not specified, the directory is based on the name of the feed.
-* `feedurl` - The url to the feed. Optional, if it's not specified ikiwiki
- will look for feeds on the `url`. RSS and atom feeds are supported.
-* `updateinterval` - How often to check for new posts, in minutes. Default
- is 15 minutes.
-* `expireage` - Expire old items from this feed if they are older than
- a specified number of days. Default is to never expire on age.
-* `expirecount` - Expire old items from this feed if there are more than
- the specified number total. Oldest items will be expired first. Default
- is to never expire on count.
-* `tag` - A tag to tag each post from the feed with. A good tag to use is
- the name of the feed. Can be repeated multiple times. The [[tag]] plugin
- must be enabled for this to work.
-* `template` - Template to use for creating the aggregated pages. Defaults to
- aggregatepost.
-
-Note that even if you are using subversion or another revision control
-system, pages created by aggregation will *not* be checked into revision
-control.
-
-## internal pages