Navigation, process, ease of use improvements

• Added a way to kill all PHP/Python processes
• Modified the PHP router script to seek the correct URL if linking
without a .php (eg: a link to /contact will be correctly “resolved” to
/contact.php)
• Router will now correct serve an index.(php|html|htm) if one is
present in the directory being passed
• If you’re connected to a local network, the first active adapter’s IP
address is opened via xip.io, to make it easier to do testing on
devices on the same network