Revert "add versions and constraints for packages and samples"

This is currently blocking us from testing samples.


Review URL:

git-svn-id: 260f80e4-7a28-3924-810f-c04153c831b5
1 file changed
tree: 8e056ade33ad886f79e97acedd31cd23137614bd
  2. lib/
  3. pubspec.yaml
  4. test/

A Unicode manipulation library for Dart.

The utf package provides common operations for manipulating Unicode sequences. In its initial form it is a copy of the dart:utf library before that was deprecated.