$wgNamespacesWithSubpages = array(
        NS_MAIN           => true,
        NS_TALK           => true,
        NS_USER           => true,
        NS_USER_TALK      => true,
        NS_PROJECT_TALK   => true,
        NS_IMAGE_TALK     => true,
        NS_MEDIAWIKI_TALK => true,
        NS_TEMPLATE_TALK  => true,
        NS_HELP_TALK      => true,
        NS_CATEGORY_TALK  => true,
        100               => true,
        101               => true
);


## To enable image uploads, make sure the 'images' directory
## is writable, then set this to true:
$wgAllowExternalImages = true;
$wgEnableUploads       = true;
$wgUseImageResize      = true;

## -------------
# This is the list of preferred extensions for uploading files. Uploading
# files with extensions not in this list will trigger a warning.
$wgFileExtensions = array( 'png', 'jpg', 'jpeg', 'gif', 'swf');
# Files with these extensions will never be allowed as uploads.
$wgFileBlacklist = array(
        # HTML may contain cookie-stealing JavaScript and web bugs
        'html', 'htm',
        # PHP scripts may execute arbitrary code on the server
        'php', 'phtml', 'php3', 'php4', 'phps',
        # Other types that may be interpreted by some servers
        'shtml', 'jhtml', 'pl', 'py',
        # May contain harmful executables for Windows victims
        'exe', 'scr', 'dll', 'msi', 'vbs', 'bat', 'com', 'pif', 'cmd', 'vxd', 'cpl' );
# This is a flag to determine whether or not to check file extensions on
# upload.
$wgCheckFileExtensions = true;
# If this is turned off, users may override the warning for files not
# covered by $wgFileExtensions.
$wgStrictFileExtensions = true;
# Warn if uploaded files are larger than this
$wgUploadSizeWarning = 150000;
## -------------