Fix Jacobian Methods

[wdu9]

Please ensure your pull request adheres to the following guidelines:

• Tests for new functionality/models or Tests to reproduce the bug-fix in code.
• Updated documentation of features that add new functionality.
• Update CHANGELOG.md with major/minor changes.

[codecov]

Codecov Report

Patch coverage: 97.82% and project coverage change: +0.04% 🎉

Comparison is base (4f644bf) 72.64% compared to head (0cdecbd) 72.68%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1342      +/-   ##
==========================================
+ Coverage   72.64%   72.68%   +0.04%     
==========================================
  Files          78       78              
  Lines       13028    13052      +24     
==========================================
+ Hits         9464     9487      +23     
- Misses       3564     3565       +1     

Files Changed	Coverage Δ
HARK/ConsumptionSaving/ConsIndShockModel.py	87.23% <97.77%> (+0.18%)	⬆️
...nsumptionSaving/tests/test_IndShockConsumerType.py	79.01% <100.00%> (ø)

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[Mv77]

Thanks @wdu9 ,

Can you just edit the changelog? After that, I'll merge

[Mv77]

Ok, merging in!