Router initial import
Rename getUrl to path
Update pubspec
Add Router class
Add simple transition handler
router test needs to be run in html
Add PageNavigator
Improve docs
Add PageNavigator
add createNavigator factory
Replace watchers with observer
Improve documentation
Fix navigation bugs
add symlink for webui
add build.dart
update gitignore
Importing observe.dart directly causes strange bugs
Create example of router usage
Add back button functionality