Updated blog

	deleted:    History.markdown
	deleted:    Rakefile
	modified:   _config.yml
	deleted:    _includes/JB/analytics
	deleted:    _includes/JB/analytics-providers/getclicky
	deleted:    _includes/JB/analytics-providers/google
	deleted:    _includes/JB/analytics-providers/mixpanel
	deleted:    _includes/JB/analytics-providers/piwik
	deleted:    _includes/JB/categories_list
	deleted:    _includes/JB/comments
	deleted:    _includes/JB/comments-providers/disqus
	deleted:    _includes/JB/comments-providers/facebook
	deleted:    _includes/JB/comments-providers/intensedebate
	deleted:    _includes/JB/comments-providers/livefyre
	deleted:    _includes/JB/liquid_raw
	deleted:    _includes/JB/pages_list
	deleted:    _includes/JB/posts_collate
	deleted:    _includes/JB/setup
	deleted:    _includes/JB/sharing
	deleted:    _includes/JB/tags_list
	deleted:    _includes/themes/twitter/default.html
	deleted:    _includes/themes/twitter/page.html
	deleted:    _includes/themes/twitter/post.html
	deleted:    _includes/themes/twitter/settings.yml
	modified:   _layouts/default.html
	deleted:    _layouts/page.html
	modified:   _layouts/post.html
	deleted:    _plugins/debug.rb
	deleted:    _posts/2011-12-29-jekyll-introduction.md
	deleted:    archive.html
	deleted:    assets/themes/twitter/bootstrap/css/bootstrap.2.2.2.min.css
	deleted:    assets/themes/twitter/bootstrap/img/glyphicons-halflings-white.png
	deleted:    assets/themes/twitter/bootstrap/img/glyphicons-halflings.png
	deleted:    assets/themes/twitter/css/style.css
	modified:   atom.xml
	deleted:    categories.html
	deleted:    changelog.md
	deleted:    index.md
	deleted:    pages.html
	deleted:    rss.xml
	deleted:    sitemap.txt
	deleted:    tags.html
Added missing files

	new file:   _posts/2013-12-04-welcome.md
	new file:   css/screen.css
	new file:   css/syntax.css
	new file:   index.html