Admin Rewrites allows you to enable URL rewriting for Magento's admin if the server supports it.
This means URLs that look like this:
http://www.example.com/index.php/admin/index/index/
Can now look like this instead:
http://www.example.com/admin/
Beware! Incorrect use could lock you out of admin and left unable to reverse the setting. Should this happen you can still reach the Connect Manager by typing it's address directly:
http://www.example.com/downloader/
To install, get your extension key from the Connect Marketplace or composer users can enter this command:
composer config repositories.firegento composer http://packages.firegento.com
composer require clockworkgeek/admin-rewrites
If you wish to edit this code then copy these files to an installed Magento directory, the package XML file is included so it will be available from System > Magento Connect > Package Extensions > Load Local Package. You can then update and re-package as necessary.