Dependency conflict with angular-dart

I have a decency conflict between timezone and angular-dart:

``` shell
   $ pub get
   Resolving dependencies... (1.9s)
   Incompatible version constraints on collection:
   - angular 1.0.0 depends on version >=0.9.1 <1.0.0
   - timezone 0.2.0 depends on version >=1.0.0 <2.0.0
```

Could this be fixed?
