This revision includes the following changes:

 [1] need-a-ride/index.php now uses the mod_rewrite capabilities of the Interception_Manager class to fetch the ID of the ride request from the URL
 [2] the Essentials class mostly includes updated comments, but also integrates with the Interception_Manager class's ability to fetch data from SEO-friendly URLs
 [3] the Interception_Manager class now includes updated documentation for the included mod_rewrite-like method, as well as integration with the Essentials class
 [4] the Ride_Request_Display better handles data from the database server, such as handling error cases and formatting dates
 [5] the Ride_Data_Fetch class will can now handle cases where the SQL query returns zero tuples
 [6] travel-assistant.php uses the updates registerException() method rather than the addException() name and conventions