Changelog
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0.1.2 - Added set_decimal for toggling decimal places
        Changed clear_on_exit = True to set_clear_on_exit(True)
        Added support for 180 degree rotation; set_rotate180(True)

0.1.1 - Added set_brightness, range from 0.0 to 1.0

0.1.0 - Vertical scrolling, new scrolling methods, tweaks to write_string

0.0.1 - Initial Release
