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Improved rendering of cells in tables, added RewriteURL hook to HTMLRenderer.
Moved date formatting to main package from html renderer.
Updated blog and essentialbooks code to use latest features to shorten them a bit and remove redundancies.
It's import to set yourself up for rapid iteration.
I'm planning to iterate on the design of essential books but currently to test a change I have to re-generate the whole static site. That's time consuming.
I'm writing a simple web server which serves files on demand and therefore I'll be able to change js / css / html templates and reload the page to see changes.