Johan Frank's repositories
wp-plugin-base
Extendable PHP class for creation of WordPress plugins
awesome-php
A curated list of amazingly awesome PHP libraries, resources and shiny things.
php-markdown
Parser for Markdown and Markdown Extra derived from the original Markdown.pl by John Gruber.
wp-batch-import-postmeta
Export and import your Wordpress posts of any type to a handy CSV file, with your own post meta fields definitions.
You-Dont-Know-JS
A book series on JavaScript. @YDKJS on twitter.