Second half of HTML json docs. This reads the json file and inserts the docs.

The format should match what was hand-written, but the order of annotations may
have changed. This does not effect anything, but it's worth noting.

Review URL: https://codereview.chromium.org//12045076

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@17649 260f80e4-7a28-3924-810f-c04153c831b5
6 files changed