Remove parameters no longer supported in config file by jekyll, per these messages from jekyll:

     Deprecation: Auto-regeneration can no longer be set from your configuration file(s). Use the --watch/-w command-line option instead.
     Deprecation: The 'server' configuration option is no longer accepted. Use the 'jekyll serve' subcommand to serve your site with WEBrick.
Add new post about Blueprint CSS.  Very short, as it appears it might be an orphaned or legacy project.