A small growl-like notification plugin for jQuery

• http://boedesign.com/blog/2009/07/11/growl-for-jquery-gritter/

• Dropped IE6 support
• Added position option to global options (bottom-left, top-left, top-right, bottom-right)

• Fixed 404 issue in the css when fetching '.' as an image
• Added callback parameter in before_close and after_close callbacks to determine whether it was closed manually by clicking the (X)

• Commented code using JSDOC
• Major code cleanup/re-write
• Made it so when you hit the (X) close button, the notification slides up and vanishes instead of just vanishing
• Added optional "class_name" option for $.gritter.add() to apply a class to a specific notification
• Fixed IE7 issue pointed out by stoffel (http://boedesign.com/blog/2009/07/11/growl-for-jquery-gritter/)

• Renamed the global option parameters to make more sense
• Made it so the global options are only being ran once instead of each $.gritter.add() call

• Added callbacks (before_open, before_close, after_open, after_close) to the gritter notifications
• Added callbacks (before_close, after_close) to the removeAll() function
• Using 1 image for the CSS instead of 5 (Thanks to Ozum Eldogan)
• Added option to over-ride gritter global options with $.extend

• Fixed IE6 positioning bug

• Fixed hover bug (pointed out by Beel & tXptr on the comments)