pfSense

Remove two more hard coded paths

Save/Load should be "nowrap'd"
Reported by: hoba

Insert a short blurb about optional intefaces gateway option

Oops, remove keep fragments option - in pf this is global

Let the update_if_changed() force passing as reference instead of relying on our memory and testing abilities

Proofreading.

Add greyout and minor syntax fixes from versions 1.8-1.12.

As we now support alternate version checking URLs, replace the current error message upon check_firmware_version() with something more general.

Expose pfsense.auto_update and pfsense.check_firmware_version.

Remove "cannot determine firmware version" line when alternative URLs are being used unless the version check actually fails.