Change status of prop#225, prop#238 and prop#243
Prop225: Draft --> Rejected It has been superseeded by proposal 250.
Prop238: Draft --> Finished
Implemented and been upstream since 0.2.6.3+ as the
Prop243: Open --> Closed
Implemented and merged upstream. Although, we need to modify dir-spec.txt since now HSDir need
Fast and minium of 96 hours uptime. That's a trivial change.
With enough ACK, I'll proceed with the cleanup.