Handle zip files which contain non-UTF-8 encoded files

[craiga]

Fixes #74

• [x] Has Test cases written
• [x] Has all code lines tested
• [ ] Has make format been run?
• [ ] Please update CHANGELOG.yml(not CHANGELOG.rst)
• [x] Passes all Travis CI builds
• [ ] Has fair amount of documentation if your change is complex
• [ ] run 'make format' so as to confirm the pyexcel organisation's coding style
• [x] Please add yourself to 'contributors' section of pyexcel-io.yml (if not found, please use CONTRIBUTORS.rst)
• [x] Agree on NEW BSD License for your contribution

[codecov-commenter]

Codecov Report

Merging #75 into dev will increase coverage by 0.01%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##              dev      #75      +/-   ##
==========================================
+ Coverage   95.63%   95.64%   +0.01%     
==========================================
  Files          47       47              
  Lines        3252     3263      +11     
==========================================
+ Hits         3110     3121      +11     
  Misses        142      142              

Impacted Files	Coverage Δ
pyexcel_io/readers/csvz.py	100.00% <100.00%> (ø)
tests/test_new_csvz_book.py	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update a96bdc3...61c1195. Read the comment docs.

[chfw]

thanks for your contribution! I will get it released in next release.

I have some work to refactor pyexcel-io writer to the new version. it may take some time.

[chfw]

@craiga , I hope you are OK with contributor update, which is done by https://github.com/moremoban/gease/blob/dev/gease/contributors.py#L60