adc: beginnings.
adc: initial MQTT integration.
adc: fixed GPIO export & improved diagnostics.
adc: use ADC0..ADC7 as channel names.
adc: use GPIOs from the environment.
adc: added averaging & config file.
adc: added min_switch_interval_ms config option.
adc: renamed TSysfsADCException -> TADCException.
adc: fixed error handling.
adc: added 'debug' option in the config and -d command line switch.

Don't output any debug print unless one of these is set.
adc: publish all 8 ADC channels.
adc: publish .../meta/order for channels.
adc: fixed compile error on the target system.
adc: updated debian package to include wb-homa-adc config & init script.
adc: removed TBD that was done.
gpio: added support for input GPIOs, restored support for 'inverted' flag.
adc: worked around in_voltage1_raw sysfs read problem.
fix typo