rigol-ds: Update which channels are enabled after making changes.
rigol-ds: Check SCPI read is complete after reading expected block length.
rigol-ds: Correct digital waveform block sizes.
rigol-ds: DS1000 series actually use IEEE488.2 data block format.
scpi: Strip trailing newlines in sr_scpi_get_string().
rigol-ds: Use standard sr_scpi_get functions, remove internal versions.
scpi: Remove redundant newline removal in sr_scpi_get_hw_id().
rigol-ds: Use *OPC? command rather than delay to await completion.
rigol-ds: Cleanup and fix check for short data blocks.
rigol-ds: Send FRAME_BEGIN and FRAME_END per frame, not per channel.
rigol-ds: fix set_cfg() calls with float parameters to avoid locale issues
rigol-ds: add more valid timebases for DS2302
rigol-ds: use appropriately defined NUM_VDIV constant
rigol-ds: add support for more keys in config_get()