pfSense

• Convert schedules to pf(4).
  This allows to schedule the whole feature of the rules like queues/limiters/gateways/blocks/allows/etc...
• Whitespace cleaning on filter.inc
• Move schedule backend logic from pfsense-utils.inc to filter.inc and prefix with filter_....

Call system_routing_configure after changes

Remove second include("guiconfig.inc"). Where is my pointy hat to distribute??

Fix "disable checksum offloading", and some other bugs with certain combinations of options while here.

• Do not apply the settings directly from hitting the SAVE button show the apply settings option for consistency with other pages.

Apparent variable name typo, fixes Ticket #1904

touch up text

Remove DHCP leases for MAC addresses that now have static/fixed addresses. If these are not cleared, DHCP complains in the logs about duplicate leases.

Move dhcp lease delete button to the end, and change comments to match style of others nearby.

Show interface names in uppercase.