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/applications/misc/wordnet/default.nix

@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
          for computational linguistics and natural language processing.
       '';
 
-    homepage = http://wordnet.princeton.edu/;
+    homepage = https://wordnet.princeton.edu/;
 
     maintainers = [ ];
     platforms = with stdenv.lib.platforms; linux ++ darwin;