Summary of important user-visible changes for instrument-control 0.1.0:
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 ** Initial release

 ** Support for Parallel interface I/O

 ** Support for Serial interface I/O

 ** Support for i2c interface I/O

 ** The following functions are new:
        serial
        srl_close
        srl_read
        srl_write
        srl_baudrate
        srl_flush
        srl_stopbits
        srl_bytesize
        srl_parity
        srl_timeout
        i2c
        i2c_addr
        i2c_read
        i2c_close
        i2c_write
        parallel
        pp_ctrl
        pp_stat
        pp_close
        pp_data
        pp_datadir

        
