Highlight "performance" and add shortcut for performance.now()
https://developer.mozilla.org/en-US/docs/Web/API/Performance
Additional shortcuts for date-related things
Add shortcut for Number.toFixed()
Bump version to 2013-10-27
Add shortcut for short DOCTYPE version
Additional shortcut for <caption />
Shortcuts for some common attributes
Bump version to 2013-10-27