move all user-editable configs out of Rakefile & config.rb
update dirs config
fall back to example configs for initial setup
config updates
update paths
fuck, we're on an old version of jekyll. current docs fairly useless.
gonna have to upgrade that next.
update jekyll
update readme
update jekyll commands
downgrade jekyll for now. no time to dig into incompatibilities
revert to old jekyll commands
old-ass jekyll can't handle config override