Make 5 angstroms the default cutoff radius for voronoi neighbor list.

[jboes]

• Some additional merges with local master.
• addition of get_baysian_neb to catflow
• version bump to 0.5.4

[coveralls]

Pull Request Test Coverage Report for Build 323

• 18 of 128 (14.06%) changed or added relevant lines in 9 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-1.8%) to 64.057%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
catkit/gen/utils/coordinates.py	6	10	60.0%
catkit/flow/fwio.py	1	6	16.67%
catkit/flow/laminar.py	0	8	0.0%
catkit/flow/fwase.py	1	15	6.67%
catkit/gen/adsorption.py	4	83	4.82%

Files with Coverage Reduction	New Missed Lines	%
catkit/gen/surface.py	2	83.07%

Totals
Change from base Build 321:	-1.8%
Covered Lines:	2201
Relevant Lines:	3436

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💛 - Coveralls