Release preparation v1.137

[Alexey]

It will be requested separately as far as I know:

@jtolio

We will be starting by flipping the switch to hashstore for new uploads only on growing numbers of nodes in the network, and will be monitoring performance metrics and your feedback here on the forum. We will be doing this by Satellite, too, so we can watch the effects with different use patterns and limit the impact. Then after that, we will start another similar process to begin migrating already uploaded data.