Add package versions to some of the packages or fix existing ones to conform to nixpkgs conventions.

pkgs/development/libraries/despotify/default.nix

@@ -5,7 +5,7 @@
 
 stdenv.mkDerivation rec {
 
-  name = "despotify";
+  name = "despotify-svn521";
 
   src = fetchsvn {
     url = "https://despotify.svn.sourceforge.net/svnroot/despotify";

pkgs/development/libraries/libf2c/default.nix

@@ -1,7 +1,7 @@
 {stdenv, fetchurl, unzip}:
 
 stdenv.mkDerivation rec {
-  name = "libf2c";
+  name = "libf2c-20100903";
   
   src = fetchurl {
     url = http://www.netlib.org/f2c/libf2c.zip;

pkgs/development/libraries/libixp_for_wmii/default.nix

@@ -1,6 +1,6 @@
 args: with args;
 stdenv.mkDerivation {
-  name = "libixp_for_wmii";
+  name = "libixp_for_wmii-0.4";
   phases = "unpackPhase installPhase";
   installPhase = "
      export LDFLAGS\=$(echo \$NIX_LDFLAGS | sed -e 's/-rpath/-L/g')

pkgs/development/libraries/libyaml/default.nix

@@ -1,7 +1,7 @@
 {stdenv, fetchurl}:
 
 stdenv.mkDerivation {
-  name = "libyaml";
+  name = "libyaml-0.1.3";
 
   src = fetchurl {
     url = http://pyyaml.org/download/libyaml/yaml-0.1.3.tar.gz;

pkgs/development/libraries/science/biology/biolib/default.nix

@@ -1,7 +1,7 @@
 { stdenv, fetchurl, cmake, rLang, zlib }:
 
 stdenv.mkDerivation rec {
-  name = "biolib";
+  name = "biolib-${version}";
   
   version = "0.0.1";