Version bump to 0.5.0-alpha.
Restructure the plugin and bring it up to date with the latest code from the Hybrid Core framework.
Drop old translation files.
Translation and text string updates.
Clean up main class code and add inline docs.
Clean up and update plugin header info.
Drop the readme.css and readme.html files.
Add plugin screenshots.
Overhaul of the readme.txt file.
Add the readme.md file.
Version bump to 0.5.0.