Small optimisation at editor.getSession().getDocument().getLength()
Changes at addon structure
Added comments to ACE_ADDON_CONSTANTS
Added "fork me on github" badge
Moved index.html to demo directory
Moved stylesheets/style.css -> demo/stylesheets/style.css
MOved javascripts directory to demo dir.
Changed http-server path to demo dir.
Update paths at Gruntfile
Major changes at addon.js, created blank_addon.html
Small optimisation at addon.js

Added mainElement variables to store the DOM element
cleanup blank_addon.html
remove getSession event from blank_addon.html
WIP at AceAddon update function
Set the active cursor addon gutter cell style.
cleanup addon.js
WIP at changeFold event
Added description to show/hide cell function
comment out console.log stuff at addon.js
Updated fold info demo