pfSense

Clean up, organize, and expand the info presented by status.php. Save the output to individual text files and compress them into a .tgz for later download.

Also sanitize OpenVPN static/tls keys in status.php

Setup Wizard can result in invalid LAN DHCP pool calculation

1) consider where the LAN IP is in the subnet range and then put the
DHCP pool in the biggest remaining segment, either above or below.
2) Check the size of the available segment. If it is reasonably big then...

Improve setup wizard host name check

Redmine #4712
It seems good enough to make the regex strings here be "reasonable". The full checks are done after pressing Next and the correct routines are called that do an exhaustive check. There seems not much point in trying to re-engineer all that here also....

Minor wizard text fixups

Supply current WAN gateway name to wizard

As the name of the WAN gateway is not always WANGW.
Should fix redmine #4713

Clarify DNS Forwarder and Resolver both apply in these places. partially Ticket #3730

Allow option to specify just 1 of user and pass in OpenVPN .up file

As per comment in https://redmine.pfsense.org/issues/3633 sometimes the
server end only requires a password, no username. Usually 1 long string
that serves as the hard-to-guess authentication. OpenVPN expects...

remove pointless filter on dhcp static mappings table

Added the Stateless DHCP Dropdown here