only load classifier gem if necessary
add code highlighting docs to readme
add include docs to readme
up to 0.1.6
remind about --pygments in readme
test_post failed if you weren't in UTC-8, so use the current time zone for testing
document filters
reorganize readme
move bit about autobuild
document liquid data
readme data tweaks
remove empty line
document yaml front matter
better data docs
move related_posts into site data
readme clarifications
update history with related_posts change
clarify front matter docs
break long lines in readme
fix formatting