Initial port for D6
Fixed ssl variable deletion during module uninstallation
Fixed emails not being delivered when unique_args were not altered
Changed email SendGridMailSystem to use ssl configuration option to use non-ssl connection when wanted
Added support for external modules to alter unique arguments throught Drupal's hook system
Added configuration option for using ssl connections
Implemented function witch can retrieve list of bounced emails using Web API
Fixed typo in comment line already -> already
Some typos fixed in comments from SendGridMailSystem
Fixed some typos on api.php
