Add evemu tool to emulate and record input device event data

[Bjørn Forsman:
 * wrap some long lines
 * tweak meta attrs (don't repeat package name, s/meta.maintainer/meta.maintainers/)
 * provide a version number (v2.0) for 'evemu' (for nix-env)
]

pkgs/development/libraries/libevdev/default.nix

@@ -0,0 +1,20 @@
+{ stdenv, fetchurl, python }:
+
+stdenv.mkDerivation rec {
+  name = "libevdev-1.2";
+
+  src = fetchurl {
+    url = "http://www.freedesktop.org/software/libevdev/${name}.tar.xz";
+    sha256 = "0h54ym5rsmicl4gx7gcdaifpyndakbl38c5dcxgr27f0cy0635a1";
+  };
+
+  buildInputs = [ python ];
+
+  meta = with stdenv.lib; {
+    description = "Wrapper library for evdev devices";
+    homepage = http://www.freedesktop.org/software/libevdev/doc/latest/index.html; 
+    license = licenses.mit;
+    platforms = platforms.linux;
+    maintainers = [ maintainers.amorsillo ];
+  };
+}