Please upgrade your html5lib dependencies. Makes problems if you want to have polymer + Angular

[MikeMitterer]

Having this;
dependencies:
polymer_elements:
git: https://github.com/ErikGrimes/polymer_elements

polymer_ui_elements:
git: https://github.com/ErikGrimes/polymer_ui_elements

angular:
#git: https://github.com/MikeMitterer/angular.dart
git: https://github.com/angular/angular.dart

Results in:
Resolving dependencies... (15.5s)
Incompatible version constraints on html5lib:

• angular depends on version >=0.9.2 <0.10.0
• polymer depends on version >=0.10.0 <0.11.0