[UPDATE] x11/py-qtpy 1.2.1 -> 1.4.2

[Elias M. Mariani]

- Changelog:
https://github.com/spyder-ide/qtpy/blob/master/CHANGELOG.md

- Mainly additions and bug fixes, fixes many issues experienced with
porting devel/spyder.
- Only consumer: x11/py-qtawesome with no consumers. (Until
devel/spyder gets committed)
- Taking maintainership. (already talked with Alexandr)

Cheers.
Elias.

py-qtpy-1.4.2.diff
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