Updated base files to personalize basic use of CI framework
-Fixed the base "default" controller to "main.php"
-Renamed "welcome.php" to "main.php" (controller)
-Added 
--A base_url to config.php file
--.htaccess file that removes the need to have "index.php" in the site url
-Forgot to mention that I updated the README.md file explaining that config.php and .htaccess need to be updated to work when downloading to your local machine