<!DOCTYPE html>
<html manifest="manifest.appcache">
<head>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Bookmarks Manager</title>
  <link rel="stylesheet" href="/styles/bootstrap.min.css">
</head>
<body>
<div id="bm-app">
</div>
<script src="/libs/core.min.js"></script>
<script src="/libs/system.js"></script>

<script>
  var config = {
    baseUrl: '.',
    paths: {
      react: '/libs/react.min.js',
      'react-bootstrap': '/libs/react-bootstrap.min.js',
      flux: '/libs/flux.js'
    }
  };
  System.config(config);
  System.import('app.js');
</script>
</body>
</html>

<!DOCTYPE html>
<html manifest="manifest.appcache">
<head>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Bookmarks Manager</title>
  <link rel="stylesheet" href="/styles/bootstrap.min.css">
</head>
<body>
<div id="bm-app">
</div>
<!-- build:remove:dev -->
<script src="/libs/core.min.js"></script>
<script src="/libs/system.js"></script>

<script>
  var config = {
    baseUrl: '.',
    paths: {
      react: '/libs/react.min.js',
      'react-bootstrap': '/libs/react-bootstrap.min.js',
      flux: '/libs/flux.js'
    }
  };
  System.config(config);
  System.import('app.js');
</script>
<!-- /build -->
<!-- build:remove:prod -->
<script src="/libs/core.js"></script>
<script src="/libs/system.js"></script>

<script>
  var config = {
    baseUrl: '.',
    paths: {
      react: '/libs/react.js',
      'react-bootstrap': '/libs/react-bootstrap.js',
      flux: '/libs/flux.js'
    }
  };
  System.config(config);
  System.import('app.js');
</script>
<!-- /build -->

</body>
</html>

Add conditional for build targets
Add conditional for build targets
