poll facebook photos as well as posts to work around fb automatically collapsing photos
reset source status to enabled after a successful poll
case-independent sort sources on front page
drop unused google+ test
Merge branch 'master' of github.com:snarfed/bridgy
store sent, unsent, and error webmention targets in Comments
clear webmention targets from Comment.unset more aggressively
add links on front page to original post URLs in recent comments sections