anchor.diff:        requiredGems = [  ];
         sha256 = ''082zmail2h3cxd9z1wnibhk6aj4sb1f3zzwra6kg9bp51kx2c00v'';
       };
  -    rack_1_4_1 = {
  +    rack_1_4_4 = {
         basename = ''rack'';
         meta = {
           description = ''a modular Ruby webserver interface'';
  -        homepage = ''http://rack.rubyforge.org'';
  +        homepage = ''http://rack.github.com/'';
           longDescription = ''Rack provides a minimal, modular and adaptable interface for developing
   web applications in Ruby.  By wrapping HTTP requests and responses in
   the simplest way possible, it unifies and distills the API for web
   servers, web frameworks, and software in between (the so-called
   middleware) into a single method call.
   
  -Also see http://rack.rubyforge.org.
  -'';
  -      };
  -      name = ''rack-1.4.1'';
  -      requiredGems = [  ];
  -      sha256 = ''1cx3wzg48pn4sbb6a0iq726fjh3q7y77fly81mfnprrnwp7d0190'';
  +Also see http://rack.github.com/.
  +'';
  +      };
  +      name = ''rack-1.4.4'';
  +      requiredGems = [  ];
  +      sha256 = ''1h0x50ng1s2jy6h5adw4a430vz8x28nskq099x3pjlpns6q632vz'';
  +    };
  +    rack_1_5_1 = {
  +      basename = ''rack'';
  +      meta = {
  +        description = ''a modular Ruby webserver interface'';
  +        homepage = ''http://rack.github.com/'';
  +        longDescription = ''Rack provides a minimal, modular and adaptable interface for developing
  +web applications in Ruby.  By wrapping HTTP requests and responses in
  +the simplest way possible, it unifies and distills the API for web
  +servers, web frameworks, and software in between (the so-called
  +middleware) into a single method call.
  +
  +Also see http://rack.github.com/.
  +'';
  +      };
  +      name = ''rack-1.5.1'';
  +      requiredGems = [  ];
  +      sha256 = ''113gzaha2qx74y0wl940zlzrn9357yww6zrbyva05d09l749d21r'';
       };
       rack_cache_1_2 = {
         basename = ''rack_cache'';
  
positive.code:   * rubyforge config
  * For all rubyforge upgrades, run 'rubyforge config' to ensure you have latest.'';
        };
        name = ''rubyforge-2.0.3'';
        requiredGems = [ g.json_pure_1_7_3 ];
        sha256 = ''1ck9hkad55dy25819v4gd1nmnpvcrb3i4np3hc03h1j6q8qpxg5p'';
      };
      rubyforge_2_0_4 = {
        basename = ''rubyforge'';
        meta = {
          description = ''A script which automates a limited set of rubyforge operations'';
          homepage = ''http://codeforpeople.rubyforge.org/rubyforge/'';
          longDescription = ''A script which automates a limited set of rubyforge operations.
  
  * Run 'rubyforge help' for complete usage.
  * Setup: For first time users AND upgrades to 0.4.0:
    * rubyforge setup (deletes your username and password, so run sparingly!)
    * edit ~/.rubyforge/user-config.yml
    * rubyforge config
  * For all rubyforge upgrades, run 'rubyforge config' to ensure you have latest.'';
        };
        name = ''rubyforge-2.0.4'';
        requiredGems = [  ];
        sha256 = ''1wdaa4nzy39yzy848fa1rybi72qlyf9vhi1ra9wpx9rpi810fwh1'';
      };
      rubyzip_0_9_4 = {
        basename = ''rubyzip'';
        meta = {
          description = ''rubyzip is a ruby module for reading and writing zip files'';
          homepage = ''http://rubyzip.sourceforge.net/'';
        };
        name = ''rubyzip-0.9.4'';
        requiredGems = [  ];
        sha256 = ''1lc67ssqyz49rm1jms5sdvy6x41h070razxlmvj4j5q6w3qixx41'';
      };
      rubyzip_0_9_9 = {
        basename = ''rubyzip'';
  
negative.code:       requiredGems = [  ];
        sha256 = ''158bvrhammpblky9z9dgimjr55bdypfx6w5s1dm4vyj42h49qpkx'';
      };
      atoulme_Antwrap_0_7_4 = {
        basename = ''atoulme_Antwrap'';
        meta = {
          description = ''A Ruby module that wraps the Apache Ant build tool. Antwrap can be used to invoke Ant Tasks from a Ruby or a JRuby script.'';
  