rename extension

For possible legal reasons I need a rewrite on an open source Mediawiki extension called WikiTweet. I need all references & coding changed that references Tweeting. Rename the extension WikiYell and instead of tweeting call it Send a Yell and call private messages a whisper. Here's the original extension page from Mediawiki: [login to view URL]:WikiTweet. Made sure to include accreditation to the original extension in the rewrite. Additionally it needs to work on Mediawiki version 1.19.1 -- I keep getting the following error undefined index [login to view URL] on line 289. That needs to be fixed. Also my system keeps sending me the following warning when I first start the software: no such file or directory in htdocs/includes/ [login to view URL] on line 455 which references WikiTweet.il8n.magic.php. Need all this cleaned up so it works without errors. Other details: PHP 5.3.13 & MySQL 5.5.21-log. Currently the git download from the Mediawiki's extension's page isn't working so you need to download the files from here:[login to view URL]