Bumped version to 1.2.4
Refactored into smaller methods with more descriptive method names
Added a few phpdoc type hints
Fixed typo in comment
Add new configurable feature to redirect from any page (not just catalog pages)
Update copyright year
Make dependency on Mage_Core and Mage_Adminhtml explicit
Add new system.xml label to locale files
Add default value for new config option
Update version to 1.2.5
Removed Magento Connect links from README