Automatically refresh datasets when new version and new dataset
With the upcoming version (4.0), there will be new levels in algebra activities. If a user does a GCompris upgrade, by default they will be disabled.
We need to be able to activate them (or prompt the user to ask if they want to?) the first time we know the software is updated. We have a similar logic in the changelog to display the changes the first time.
Maybe keeping a list of all the datasets updated and their versions and we update the first time all the datasets for all the activities in the range of the update (if we update from GCompris 3.0 to 5.0, we want all the activities that have updated dataset in 3.x, 4.x and 5.0)