Version 0.8.0

Changed what reaches the public statistics: a figure is published only when the storage really happened on the main network, through the NMTS protocol.

0.7.0 kept our own service checks out by looking at who sent the request, which was the wrong question: our check would deserve to be counted if it ever stored something for real, and a stranger's empty request does not. The server now asks about the work instead, on two conditions — this deployment runs on the main network, and every part carries an id of the shape the storage network hands back after taking the bytes, 43 characters, which no placeholder is by accident. A commit that fails them is still stored, still charged for and still downloadable; only the public counter stays still. What this cannot prove is that the bytes are on the network, because the server never talks to the storage network by design.