fixed variable-names
print error for now
more health variables to read
temp/sync/rssi/packetloss are read from picAddr

which is different from the gaugeAddr
periodically update temp/rssi/packetratio

sync is still missing
try reading temperature from SMBus
print more values in test-mode
fixing typo
check for DivisionByZero
read_byte_data rather than read_word_data
try write_byte/read_byte rather than read_byte_data
no use to import streaming.Server
disabled picAddr reading for now
renamed synced/locked to sync_{ex,in}ternal
separate try/catch blocks for gauge/pic smbus
fixed typo: read_bytedata -> read_byte_data
print RSSI when printing rssi