[feature] Modifying update call to only update changed fields.

[kav]

Fixes #122

Also updated test data to trigger the issue in the event we don't diff.

[coveralls]

Pull Request Test Coverage Report for Build 7967442950

Details

• 0 of 9 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.2%) to 89.423%

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Totals
Change from base Build 7924165287:	0.2%
Covered Lines:	273
Relevant Lines:	284

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💛 - Coveralls

[scheiblr]

Thank you very much for the contribution!