The o2 Plugin for WordPress - blogging at the speed of thought
This plugin requires WordPress 4.2 or higher, and PHP 5.3.6 or higher (due to a specific XML-parsing feature in use).
This plugin works with the p2-breathe theme, available at https://wpcom-themes.svn.automattic.com/p2-breathe
This plugin uses Genericons. If you're using Jetpack, then you should already have them available. If you're not using Jetpack, you should install and activate the Genericon'd plugin, available at https://wordpress.org/plugins/genericond/
This plugin's editor can insert code shortcodes. To get those to render as code blocks, you should install and activate the SyntaxHighlighter Evolved plugin, available at https://wordpress.org/plugins/syntaxhighlighter/
Upgrade to at least WordPress 4.2
Install the p2-breathe theme into wp-content/themes/p2-breathe
Activate the theme.
Install and activate the Genericon'd plugin.
Install and activate the SyntaxHighlighter Evolved plugin
Install this plugin into wp-content/plugins/o2
Activate this plugin
Multisite self-hosted installs have not yet been tested and may not work.