Hotfixes after deployment

[ddabble]

Mainly:

• Fixed MathJax filenames when using ManifestStaticFilesStorage (a294e2e1bbcfd70e7090a67fc1c156df2b67870f)
• Added history tracking to InheritanceGroup (079d1150771eb6e70d1547665d3b64c42d2ee4ac)
• Removed __all__ variable in __init__.py files (51566068a29f61d23fdad124e7b5778cb2e1083a)

[codecov[bot]]

Codecov Report

Merging #436 (a294e2e) into dev (f76dcda) will decrease coverage by 0.05%. The diff coverage is 73.33%.

@@            Coverage Diff             @@
##              dev     #436      +/-   ##
==========================================
- Coverage   88.59%   88.54%   -0.06%     
==========================================
  Files         134      134              
  Lines        5262     5272      +10     
==========================================
+ Hits         4662     4668       +6     
- Misses        600      604       +4     

Impacted Files	Coverage Δ
web/static.py	70.83% <55.55%> (-5.36%)	:arrow_down:
groups/admin.py	100.00% <100.00%> (ø)
groups/models.py	100.00% <100.00%> (ø)
make_queue/urls.py	100.00% <100.00%> (ø)

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[ddabble]

Merging without waiting for approval, as these hotfixes are necessary for deployment, and should be pretty non-controversial.