Wrong template names are not providing good error message

[emohamed]

Router::get( '/', function() {
    return cf_template( 'templates/no-such-file.php' );
} );

produces error:

 Warning: include(): Filename cannot be empty in /path/to/framework/src/Templating/Php.php on line 18

I'd expect an exception instead.

[atanas-dev]

Fixed in 012a2628ae170c754441029505f9ac7da0cc20d0