Removed unintentional warning that would make a lot of noise in logs.
Add termination callback to clean up GPIO and I2C references held via Circuits when GenServer closes. They could easily get jammed.
Add adaptive dynamic interrupt handling using a tolerance mechanism. See README for details.
Add graceful error output on failing to set up interrupt pin. This is better than dying in a weirdly quiet way due to a match error.
Added a changelog.