support version 2 dump info
Add License

Closes #1
started work on the new ui with a dependencies viewer
programatically change tabs
Adds a rough dependency viewer and a tab-based UI.

This change also reworks the UI to be based on paper-elements.
fix some initial suggestions and prepare for using reitveld
Merge branch 'master' into ui-deps
fix sra's nitpicks
final cleanup
Merge branch 'ui-deps' of github.com:TyOverby/dump-info-visualizer into ui-deps

Conflicts:
	web/format_versions/version1.dart
	web/format_versions/versions.dart
	web/infohelper.dart
	web/viewer.css
	web/viewer.dart
	web/viewer.html