mupdf version check

[swt2c]

When building on Fedora, I ran into this when using mupdf 1.16.1:

+ /usr/bin/python3 -c 'import sys; sys.path.remove(""); import fitz'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/builddir/build/BUILDROOT/python-PyMuPDF-1.16.0-1.fc32.x86_64/usr/lib64/python3.8/site-packages/fitz/__init__.py", line 18, in <module>
    raise ValueError(
ValueError: MuPDF library mismatch 1.16.0 <> 1.16.1

The MuPDF minor releases should be compatible as far as I know, so perhaps the version check could be a little looser? Looks like the only change in 1.16.1 is an Android build fix.

[JorjMcKie]

Yes I agree - already working on a v1.16.1, where a different patch level is accepted with a warning.

[JorjMcKie]

should be fixed in v1.16.1 now.