fix(ng_events): fix doubleclick event
chore(import): consistently use single quote on import
fix(interpolate): mismatched variables
feat(ExceptionHandler): mock implementation

Closes #157
feat(Logger): Create recording logger for tests

Closes #162
feat(probe): easily get a hold of injector in the DOM for testing.
feat(directives): ng-class, ng-class-odd, ng-class-even

Closes #120
chore: updated pubspec.lock