Adding xburst-tools to manage the USB_BOOT mode of the Ben Nanonote (reflashing, ...)

I add the 'confuse' library as a side effect.

svn path=/nixpkgs/trunk/; revision=22817

pkgs/development/libraries/confuse/default.nix

@@ -0,0 +1,16 @@
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation rec {
+  name = "confuse";
+  version = "2.7";
+  src = fetchurl {
+    url = "http://savannah.nongnu.org/download/confuse/${name}-${version}.tar.gz";
+    sha256 = "0y47r2ashz44wvnxdb18ivpmj8nxhw3y9bf7v9w0g5byhgyp89g3";
+  };
+
+  meta = {
+    homepage = http://www.nongnu.org/confuse/;
+    description = "Configuration file parser library";
+    license = "BSD";
+  };
+}