Change port state names and notify when a port is cancelled.
Make port requests a default crossbar module.
Check whether to send cancel notification vs. old state instead of new.
Missed changing 'request' to 'cancel' in a few places.
Fix up HTML template.
Fix configs more.
Do not charge or clear numbers from the port request once it has finished.
Do not need to check old state when deciding whether to send cancel notification.
Added Billing ID SIP header to INVITEs.
Create crossbar module.
Fix specs and username function.
Remove unnecessary specs and put date in a json-encodeable format.
Months and minutes are not the same thing.
Use existing rfc1123() to format date.
Clean up a little.