Get the api docs generated for the crypto package

Then library name of dart.crypto caused the api docs to not be generated.

Removed some abstract modifiers and class HashException

R=floitsch@google.com
BUG=

Review URL: https://codereview.chromium.org//16410007

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/crypto@23693 260f80e4-7a28-3924-810f-c04153c831b5
8 files changed
tree: 32910860b2b4da1715d853112b75876a513a69af
  1. lib/
  2. pubspec.yaml