Decouple filter.inc from functions.inc. There is no need to process filter functions most of the time. Include filter.inc where it is needed
Rework includes/require. This saves about 4 megabytes.Simplify get_memory(). Tested on mips/i386
Rename interfaces_wan_configure to interface_configure now that it is used for all assigned interface configuration.
Merge lan configuration to the interfaces_wan.php page wich does the configuration of allother assigned interfaces.
These files are not rc.filter_configure
Add hooks for reloading lan, wan and optional interfaces