Wikimedia blog maintenance/April 2011 overhaul

Current situation
So far, two different blogs:
 * Wikimedia blog
 * Wikimedia tech blog
 * three if we count the Toolserver journal

Problems:
 * different blogs → different accounts, permissions, RSS feeds, etc.
 * duplication of posts
 * other departments likely to want dedicated sections as well
 * expected growth: all departments likely to blog more and more as they grow: Community fellowships, India, etc.
 * the current layout gives all posts the same weight, whether they're important announcements or "routine" posts
 * the current layout makes it difficult to browse posts by topic
 * the current theme is... well, not that pretty

Proposed changes

 * proposed solution: merging wikimedia blogs, and using a magazine theme
 * "important" announcements could be placed into a "featured posts" category that would give them more prominence/visibility
 * another idea to explore: offering a blog hosting platform for staff? Staff should be encouraged to blog more about their work in order to increase transparency. Wordpress MU was merged with Wordpress 3.0 so we could have, for example, a platform called http://blogs.wikimedia.org with /name/ suffixes for individual blogs

Steps

 * Back up both blogs
 * Back up all URLs from the tech blog to
 * Import file attachments from the tech blog into the main blog's file architecture (after making sure they work the same)
 * Import articles from the tech blog to the main blog (as private / not published)
 * Clean up as needed (including categories)
 * Add redirects from old tech blog URLs to the new URLs on the main blog
 * Flip the switch