Updated to work with newest Rakudo

lib/HTTP/Easy.pm6

@@ -7,7 +7,7 @@ class HTTP::Easy {
   has Int $.port = 8080;
   has Str $.host = 'localhost';
   has Bool $.debug = False;
-  has $!listener = IO::Socket::INET.new(:localhost($.host), :localport($.port), :listen(1));
+  has $!listener = IO::Socket::INET.new(:localhost($!host), :localport($!port), :listen(1));
   has $.connection is rw; ## To be populated by accept().
   has %.env; ## The environment, generated by run().
   has $.body is rw; ## Any request body, populated by run().