* TunnelPeerSelectors:
- Re-enable strict ordering of peers,
based on XOR distance from a random hash
- Restrict peers with uptime < 90m from tunnels (was 2h),
which is really 60m due to rounding in netDb publishing.
* i2psnark:
- Limit max pipelined requests from a single peer to 128KB
(was unlimited; i2p-bt default is 5 * 64KB)
- Increase max uploaders per torrent to 6 (was 4)
- Reduce max connections per torrent to 16 (was 24) to increase
unchoke time and reduce memory consumption
- Strictly enforce max connections per torrent
- Choke more gradually when over BW limit
* help.jsp: Add a link to the FAQ
* peers.jsp: Fix UDP direction indicators
* hosts.txt: Add update.postman.i2p