Make dartdoc.bat work with snapshots and run in the repo.
Make dartdoc.bat work with snapshots and run in the repo.

This supercedes https://codereview.chromium.org/16415003/.

BUG=
R=dgrove@google.com

Review URL: https://codereview.chromium.org//15645010

git-svn-id: c93d8a2297af3b929165606efe145742a534bc71@23722 260f80e4-7a28-3924-810f-c04153c831b5

dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dartino/dart-sdk,dart-lang/sdk