Add At.js and Caret.js
Add headers and fix the author's name
Fixed at.js structure, restore original headers

Also included the unminified CSS file (which is the one provided by the
author).
Merge pull request #701 from Robertof/master

Add At.js and Caret.js
Mithril v0.1.10 - version upgrade
Merge pull request #702 from lhorie/master

Mithril v0.1.10 - version upgrade