Adds useful packaging checks, closes #35

[coveralls]

Pull Request Test Coverage Report for Build 104

• 0 of 0 (NaN%) changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage remained the same at 83.333%

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Files with Coverage Reduction	New Missed Lines	%
jones_complexity.py	1	84.38%
<!--	Total:	1		-->

Totals
Change from base Build 100:	0.0%
Covered Lines:	80
Relevant Lines:	96

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💛 - Coveralls