Log Message:
Update to 5.3

Upstream changes:

Version 5.3

    Fix incomplete block table for QR version 15. Thanks Rodrigo Queiro for the \ 
report and Jacob Welsh for the investigation and fix.
    Avoid unnecessary dependency for non MS platforms, thanks to Noah Vesely.
    Make BaseImage.get_image() actually work.

Version 5.2

    Add --error-correction option to qr script.
    Fix script piping to stdout in Python 3 and reading non-UTF-8 characters in \ 
Python 3.
    Fix script piping in Windows.
    Add some useful behind-the-curtain methods for tinkerers.
    Fix terminal output when using Python 2.6
    Fix terminal output to display correctly on MS command line.

Version 5.2.1

    Small fix to terminal output in Python 3 (and fix tests)

Version 5.2.2

    Revert some terminal changes from 5.2 that broke Python 3’s real life \ 
tty code generation and introduce a better way from Jacob Welsh.