Change readme.txt to fit the WordPress readme.txt style:
http://wordpress.org/plugins/about/readme.txt
Added license information as advised by the WordPress.org readme.txt validator:
http://wordpress.org/plugins/about/validator/
Added an upgrade notice section as advised by WordPress.org readme.txt validator:
http://wordpress.org/plugins/about/validator/
Added Russian translations by Konstantin Ryabenko.
Removed some spacing.
Updated to version 2.2.4.
WordPress Coding Standards optimizations.