add readme
style webmentions like regular comments
first pass at displaying facepile for likes

both like and repost webmentions are now being displayed as facepiles
above the regular comments.  There's still more to do with the UI, like
better indicating what are likes versus reshares.

The code also needs some cleanup and to be decoupled from Genesis as
much as possible.  It really is already for the most part, I just stuck
this in genesis-indieweb.php for convenience.
auto-approve webmentions (for now)
remove htaccess files (all nginx now)
ignore w3-total-cache files
hide titles on link posts
add phaser plugin
prevent some plugins from being activated in dev
add w3-total-cache plugin
use twitter card support in opengraph plugin
add WP_LOCAL_DEV constant
minor cleanup of facepile code
ignore public/content/uploads