tweaks to blogify as a result of my 8-part blog series

added "forward" links
	these are links to posts which aren't up yet
	indicated by using {} instead of []
	it doesn't actually create links; it just throws the URL part away and renders the text
	it formats the text as gray to help indicate something is not active yet
	it also makes it very easy to go back and change them into real links later
had a proscription that bold couldn't include links ... don't know why
	removed
changed footnote formatting
	references are now smaller text
	actual notes are now closer together
	refactored to make it easier to keep formatting consistent
added HTML entity for cents
added `pgrep` as an alias for `grep -P`