Added an included_file_extensions configuration: closes #8

[jessesheidlower]

Created separate functions for the file checks, to allow for separate testing/profiling (which I did not do, however). No specific unit tests, but I tried this with many scenarios in my local deployment, and it seems to work.

Please be gentle, this is my first contribution to a Python project!

[codecov[bot]]

Codecov Report

Merging #32 into master will decrease coverage by 0.86%. The diff coverage is 0%.

@@            Coverage Diff             @@
##           master      #32      +/-   ##
==========================================
- Coverage   51.12%   50.25%   -0.87%     
==========================================
  Files           9        9              
  Lines         757      770      +13     
==========================================
  Hits          387      387              
- Misses        370      383      +13

Impacted Files	Coverage Δ
mopidy_local/commands.py	0% <0%> (ø)	:arrow_up:

---

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[jodal]

One more thing: Would be nice with a changelog update together with the change, so the changelog always is up to date and ready for release :-)

[jodal]

And, by running tox locally, you run the project through approximately the same test setup as the CircleCI build which is currently failing. That makes for a lot faster iteration!

[kingosticks]

Sorry I'm late to the review party! Great PR here, my comments are mostly nitpicks.

[kingosticks]

Except this needs to be rebased on master.

[jessesheidlower]

I hope I did the rebase correctly. If so, I think it's ready....

[kingosticks]

Looks like it needs another go through black. It can be annoying until you get in the habit of running tox before pushing.

[jessesheidlower]

Looks like it needs another go through black. It can be annoying until you get in the habit of running tox before pushing.

Yup, got it now. Sorry!

[jodal]

Thank you :-)