Minor changes in lib.src.build.runner, and fix version (now that we determined

pkg/polymer/lib/src/build/runner.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Definitions used to run the polymer linter and deploy tools without using
  * pub serve or pub deploy.
  */
 library polymer.src.build.runner;
 
@@ skipping 29 matching lines @@
 
   /** Directory where to generate code, if any. */
   final String outDir;
 
   /**
    * Whether to print error messages using a json-format that tools, such as the
    * Dart Editor, can process.
    */
   final bool machineFormat;
 
+  /**
+   * Whether to follow symlinks when listing directories. By default this is
+   * false because directories have symlinks for the packages directory created
+   * by pub, but it can be turned on for custom uses of this library.
+   */
+  final bool followLinks;
+
   BarbackOptions(this.phases, this.outDir, {currentPackage, packageDirs,
       this.transformTests: false, this.transformPolymerDependencies: false,
-      this.machineFormat: false})
+      this.machineFormat: false, this.followLinks: false})
       : currentPackage = (currentPackage != null
           ? currentPackage : readCurrentPackageFromPubspec()),
         packageDirs = (packageDirs != null
           ? packageDirs : _readPackageDirsFromPub(currentPackage));
 
 }
 
 /**
  * Creates a barback system as specified by [options] and runs it.  Returns a
  * future that contains the list of assets generated after barback runs to
@@ skipping 53 matching lines @@
     'stack_trace', 'template_binding', 'unittest', 'unmodifiable_collection',
     'yaml'].toSet();
 
 /** Return the relative path of each file under [subDir] in [package]. */
 Iterable<String> _listPackageDir(String package, String subDir,
     BarbackOptions options) {
   var packageDir = options.packageDirs[package];
   if (packageDir == null) return const [];
   var dir = new Directory(path.join(packageDir, subDir));
   if (!dir.existsSync()) return const [];
-  return dir.listSync(recursive: true, followLinks: false)
+  return dir.listSync(recursive: true, followLinks: options.followLinks)
       .where((f) => f is File)
       .map((f) => path.relative(f.path, from: packageDir));
 }
 
 /** A simple provider that reads files directly from the pub cache. */
 class _PolymerPackageProvider implements PackageProvider {
   Map<String, String> packageDirs;
   Iterable<String> get packages => packageDirs.keys;
 
   _PolymerPackageProvider(this.packageDirs);
@@ skipping 231 matching lines @@
     output.write(entry.span.getLocationMessage(entry.message,
           useColors: useColors,
           color: levelColor));
   }
   return output.toString();
 }
 
 const String _RED_COLOR = '\u001b[31m';
 const String _MAGENTA_COLOR = '\u001b[35m';
 const String _NO_COLOR = '\u001b[0m';