Fixed calls to InvalidInputException - should be InvalidInputError
Replaced Exception with InternalError in View
Required every PHP file in the lib/errors folder in index.php
Changed call to ErrorController->alert() to ErrorController->processError
Removed as-yet unused ErrorModel
Changed code from 505 to 500 in InternalError class
Removed echoed 'lol' from EventModel - oops
Modified ErrorView - small naming changes, added 200 OK definition
Added ErrorController