getting twitter embeds working properly, now functional but not perfect
let's make the masthead more narrow, twitter posts look less dumb and center images in image posts
display the excerpt, not the whole content, in a post thumbnail
removed content, since we don't make any changes to it.
fixed up code block appearance, got rid of boxes to make room for a taller slider
add a hook for FeedWordPress so it translates "format-*" tags on a post into a proper Post Format
(see companion commit on tumblr-rss: https://github.com/ghelleks/tumblr-rss/commit/42e36ceb810d8dc067101e616b125641f9cfb20c)