GIF progress indicators
fix git pull test.
minimal functions ported
Add missing functions
Replace javascript interop
moved diff into a new pub package
darty api
Merge pull request #2209 from financeCoding/remove_diff3_js_dependency

Add diff3 library and support
Merge pull request #2262 from dinhviethoa/activity-indicators

GIF progress indicators
Merge pull request #2272 from ussuri/refine-polymer-project-templates

Incorporate latest feedback from Polymer JS team into Polymer project templates
Merge pull request #2270 from dart-lang/pull_test_git

fix git pull test.
Consider dependency overrides even when path != "*" + fix unrecognized version with spaces