* Adds support for Pioneer AVR interface port number
https://community.home-assistant.io/t/support-for-pioneer-avr/503
telnetlib supports a port number so adding port as
an optional config element with a default of 23 resolves this.
* Adds timeout to Pioneer AVR
timeout in telnetlib defaults to socket._GLOBAL_DEFAULT_TIMEOUT
which is not a value, but rather a bare Object used for comparison.
telnetlib says the following about the timeout optional argument:
"The optional timeout parameter specifies a timeout in seconds
for blocking operations like the connection attempt (if not
specified, the global default timeout setting will be used)."
From the documentation for sockets:
"Sockets are by default always created in blocking mode"
Catching connect and timeout errors, logging to debug
and continuing.
* Catches timeout exceptions, logs and continues.
57777ef79a