PiBox

1. In bui/web Access Point tab
   1. Add: Enable MAC Filtering checkbutton
      1. If enabled, read accept_mac_file
      2. If disbled, clear input fields
   2. Add: list of 5-8 device input fields (limited to avoid scrolling in the app)
2. In hostapd.conf, ia MAC Filtering is enabled
   1. Add: macaddr_acl=1 (Deny unless in list)
   2. Add: accept_mac_file=/etc/hostapd.accept
   3. Update: save() tests if filtering enabled
      1. If enabled, rewrite accept_mac_file
      2. If enabled, restart hostapd

The code is implemented in both javascript/php and in piboxd. The creation of the accept file is working but the macaddr_acl=? change is not because of RM #409. I need to fix that one before I can finish this one.

RM #409 is fixed and this fixes the problem with the missing macaddr_acl=? line.

Only thing that's missing now is showing the mac address list on entry to the hostap tab if mac acl is already enabled. This would be handled with a modification to the setTab() function in settings.js.

Added support for showing the mac acl list on first entry to the access point tab depending on whether or not its currently enabled.
All updates tested on target, committed, and pushed.
That completes this feature. Closing issue.