Anki add-on: Memory Status Bar and Stats

This addon shows at total count of reviews done, time needed, cards in revision and personal record (on per day basis). In addition it shows a memory status bar, so you can quickly get an overview oft long your knowledge will "last" :) Percentiles give a better overview than averages, thus I added them. Example p25 means, in how many days 25% of your cards will be due, p75 means in how many days 75% of your card will be due. Planned for the next versions: * more options about what to display and which intervals to apply Disclaimer: I wrote this addon quite quickly, so I can't guarantee for it working or messing with your data (but acutally it shouldn't, it only reads data, excepting for the settings of the plugin).