1/ make sure activate & deactivate methods of the view respectively get as first attribute the previous and the next view reference.
2/make sure activate & deactivate methods of the view get as a second argument the data passed in the TransitionEvent opts "data" attribute. This allows to transition data object from View to View without relying on the app itself.
3/ cleanups, update sample to leverage 1/ & 2/
Merge remote-tracking branch 'upstream/master'
improve paramater naming
come back to an erroneous commit
Merge pull request #158 from cjolif/master

Create parameters to be passed in View livecycle (xxx(De)Activate) methods.