Fix stash in generate_billing_page
Remove unused violation 1200003 ($portscan_sid)
Close expiration violation when buying access time

When a user buys more network access time, we close any previous
'expiration' violation. We also make sure to add the remaining access
time left, if any.
Fix Apache configuration for new /status page
Removing file
Removed unused files
Added new mirapay billing section parameters
Added new billing gateway mirapay