add all pages list
rename: archive -> all pages
import computing pages from riceissa.github.io
chunk off templates so they are reusable
get tags to work
fix blank yaml fields
rename default to skeleton
change license parameter
fix code blocks
this commit is overdue and includes a lot:

    - math via mathjax now works
    - licensing support is included
    - default.html -> skeleton.html
add TODO file
navbar moved over
add academia.SE
remove author field
add link for Hakyll YAML support
add tests for existence of tags
add tag context and start on tag checking
add site.lhs

This should eventually just replace site.hs.  The goal is to embed my
planned Hakyll tutorial directly into the Hakyll configuration file,
using literate Haskell. btw, site.lhs already compiles and works, with
just a few problems (which are also present in site.hs, so that's not
really an issue), like bird tracks showing up in the HTML representation
of the site.