Limit posts on sidebar, add tags to articles

- clean up config
- needs pages for each added tag (todo)
Adding and reordering posts
Adding cool tag support, rb script to collect all tags

- may be possible to do this in Liquid, will experement
Native tag support (doh!), fix list formatting
Formatting fixes, cleanup unused resources
Added 'posts' page for a list organized by month/year
Adding multiple old posts! (and backdating them)

- updating some tags