Add directory with extra scripts and device files; add gitignore.

.gitignore

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+extra/backup
+misc

extra/compare-backup.sh

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+#!/bin/sh
+
+BACKUP_BASENAME=d3d-wifibox-backup
+BACKUP_FILE=$BACKUP_BASENAME.tar.gz
+REPO_PATH=../../src
+BKP_PATH=$BACKUP_BASENAME/lua/autowifi
+
+cd backup
+tar xzvf $BACKUP_FILE
+opendiff $REPO_PATH $BKP_PATH

extra/wifibox-restore-files/etc/banner

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+  _______                     ________        __
+ |       |.-----.-----.-----.|  |  |  |.----.|  |_
+ |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
+ |_______||   __|_____|__|__||________||__|  |____|
+          |__| W I R E L E S S   F R E E D O M
+ -----------------------------------------------------
+ BARRIER BREAKER (Bleeding Edge, r36032)
+ -----------------------------------------------------
+  * 1/2 oz Galliano         Pour all ingredients into
+  * 4 oz cold Coffee        an irish coffee mug filled
+  * 1 1/2 oz Dark Rum       with crushed ice. Stir.
+  * 2 tsp. Creme de Cacao
+ -----------------------------------------------------
+ 
+ d3d-wifi test box #2

extra/wifibox-restore-files/etc/sysupgrade.conf

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+## This file contains files and directories that should
+## be preserved during an upgrade.
+
+# /etc/example.conf
+# /etc/openvpn/
+
+/etc
+/usr/share/lua/autowifi
+/www/admin
+/www/cgi-bin/wfcf
+/root

extra/wifibox-restore-files/root/.profile

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+alias d='ls -la --color=auto'
+alias wfcfr='/usr/share/lua/autowifi/ext/wfcf'