Native client points adjustment

It has come to our attention that the points for native client work units are over-inflated relative to their scientific value, so we will be reducing the credit for these work units. The purpose of the native client option is to provide a low-barrier entry point for new users to Folding@home, with the hope that they will later install the full client and contribute more computing resources. Given the limited performance of the native client, the data generated is on a much smaller scale than what is possible with the full client and we have invested less in adding features to the native client code. The new points value of the native client work units will better reflect their scientific value and incentivize users to switch to the full client, as intended.