plugin:snippets - [How the updates are processed]

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	The plugin keeps a database that records the associations between snippets and the pages where they are embedded; in addition the metafiles for each page containing snippets keeps a record of each snippet and its timestamp.		The plugin keeps a database that records the associations between snippets and the pages where they are embedded; in addition the metafiles for each page containing snippets keeps a record of each snippet and its timestamp.

-	There are two way that snippets are updated:	+	There are two ways that snippets are updated:
	- When a page with a revised snippet is opened for revision, the revised snippet will automatically replace the old version in the editing window. For the change to become permanent, the page must be saved.		- When a page with a revised snippet is opened for revision, the revised snippet will automatically replace the old version in the editing window. For the change to become permanent, the page must be saved.
	- When a snippet is revised, a table will appear at the bottom of its page with a listing of the pages that have used the snippet. \\ {{ http://i1369.photobucket.com/albums/ag206/turnermm03/update_table3_zps4qzf2gsi.png?450 }} \\ Each page name is a link. When clicked, it will update the snippet (and any other snippets) in the page named in the link. In addition, unused page ids assigned to the snippet will be pruned from the database, and the metafile for the page will be updated, unless the checkbox is un-checked.		- When a snippet is revised, a table will appear at the bottom of its page with a listing of the pages that have used the snippet. \\ {{ http://i1369.photobucket.com/albums/ag206/turnermm03/update_table3_zps4qzf2gsi.png?450 }} \\ Each page name is a link. When clicked, it will update the snippet (and any other snippets) in the page named in the link. In addition, unused page ids assigned to the snippet will be pruned from the database, and the metafile for the page will be updated, unless the checkbox is un-checked.