Mark many packages (mostly python) broken because of broken dependencies.

pkgs/applications/networking/browsers/netsurf/netsurf.nix

@@ -23,13 +23,13 @@ stdenv.mkDerivation {
   buildPhase = "make PREFIX=$out";
   installPhase = "make PREFIX=$out install";
 
-  meta = { 
+  meta = {
     description = "free, open source web browser";
     homepage = http://www.netsurf-browser.org;
     license = ["GPLv2" /* visual worrk : */ "MIT" ];
     maintainers = [args.lib.maintainers.marcweber];
     platforms = args.lib.platforms.linux;
+    broken = true;              # libnsbmp-0.0.1 is broken
   };
 
 }
-