espalarm Code

Some more complexity reduced, a couple of fixes.

Tune multicast and TCP connection handling.
Simplify some of the loop syntax.
Protect against multithread use of peerlist.

Remove dead code

TCP communication cleaned up

(Try to) ensure messages always terminate with a newline

Respond to socket errors, even when select() doesn't

work in progress

Remove dead code

Remove code for UDP and Weather

Work in progress to remove bloat, and replace UDP based communications (needing all kinds
of own development) by TCP. So hopefully no more keepalives etc.