Form now has error handling for no events

Previously, if you selected no events and asked for the ical, it would hand you a file with error messages inside.
Supports multiple PAX Events

Moved global variables to index.php from functions.php
XML Location is now an array of arrays called PAXES, each containing information about a pax
    name,xml location, timezone.
The entire tool uses aforementioned PAXES global variable