mLinux commisioning.

Project will include a cgi for
quick commisioning and a web UI.

WebUI is the default location https://192.168.2.1 during
commissioning.

/etc/init.d/lighttpd should
be replaced and use /etc/default/commissioning symlink.
If commissioning file is missing, we are commissioning.
/var/volatile/default/commisioning should only be
created after the commissioned user-id is verified.

opkg install php-fpm
opkg install lighttpd
opkg install lighttpd-module-fastcgi
opkg install lighttpd-module-redirect

By default php-fpm runs as nobody.  It needs to be
able to execute commands.  Maybe a C program should
be set to setuid for commisioning so it
does not need to run as root?