treewide: use more HTTPS URLs

Uses the HTTPS url for cases where the existing URL has a permanent
redirect. For each domain, at least one fixed derivation URL was
downloaded to test the domain is properly serving downloads.

Also fixes jbake source URL, which was broken.

pkgs/servers/dict/dictd-wordnet.nix

@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
          the wordnet data available to dictd and by extension for lookup with
          the dict command. '';
 
-    homepage = http://wordnet.princeton.edu/;
+    homepage = https://wordnet.princeton.edu/;
 
     maintainers = [ ];
     platforms = stdenv.lib.platforms.all;