Reduced article width to 800px in desktop format.

Previously this was more than 1000px, which made seek times on one's
eyes much too long.
Trigger resize on comment post.
Fixed addthis display issues on chrome

div.addthis doesn't need to be an in-line block.
Ask google to track less user information with analytics

By default, google records your whole IP address. We now ask
them not to.
Merge remote-tracking branch 'pjf.github.io/base' into base