Make 4.1.0 release

[kghbln]

Version already bumped to 4.1.0

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.43%. Comparing base (361c465) to head (7a5f3b3).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #102   +/-   ##
=========================================
  Coverage     82.43%   82.43%           
  Complexity       80       80           
=========================================
  Files             7        7           
  Lines           205      205           
=========================================
  Hits            169      169           
  Misses           36       36           

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[kghbln]

Before someone complains about the bump to SMW 5.1.0, this is what we are testing against for 1.39. If SMW 5.0.0 still works, this is fine with all of us.