Add new RPC command requests.
Adjust sessions RPC command to show pending requests.
Only keep first 15 chars in version string.
Set socket timeout
Try more forceful closing of socket
Fixes#67
- incoming buffered network requests limited to 150,000 bytes
which I believe is ample for a genuine client
- if exceeded, the connection is dropped
- raise outgoing data limit for RPC connections to 5 MB - expect
sessions calls can be long and connection is implicitly trusted
- similarly raise incoming buffered data limit to 5 MB for RPC
connections
Move session logging code to protocol.py from electrum_rpc.py
Use it for periodic logging controlled by envvar LOG_SESSIONS
For each session, track sent transaction stats and show that
per-session instead of errors
