#6 Deprecated variable

[Emmanuel Blot]

phpAutoGallery makes intensive use of PHP' deprecated
variables such as $HTTP_SERVER_VARS (in lieu of $_SERVER).

This makes phpAutoGallery unusable on 'modern' PHP
configuration that follows recommendations about global
variables and so forth.

loader/*loader.php scripts computes path without using
precomputed path values, which makes the change (to
follow $_SERVER) a bit more complicated.