Added the postmortem from today's outage
Merge pull request #6 from skottler/04062013_postmortem

Added the postmortem from today's outage
Added 2.0.4 release announcement
Fix version number in release notes
Added "Bug fixes" section like past releases
Added 2.0.5 release announcement
Added 2.0.6 release announcement
Add missing upgrading reference
Added 2.1.0 Release Candidate 1 announcement
Use waitpid to wait for children
Added 2.0.7 release announcement
Fix download links
Fix parallel extension building reference
Added 2.1.0.rc.2 release announcement
RubyGems CVE-2013-4287 releases

This set of releases covers:

* CVE-2013-4287
* RubyGems 2.1.0
* RubyGems 2.0.8
* RubyGems 1.8.26
* RubyGems 1.8.23.1
Added 2.1.1 release announcement
Added 2.1.2 release announcement
Try to tickle github pages into rebuilding
Remove square-brackets that maruku complains about

Maruku thinks they are supposed to be links, but they are not.  Some
rewording retains the original meaning.
Try to tickle github pages into rebuilding