Merge pull request #45 from JimHokanson/master

From J to M
Merge pull request #46 from JimHokanson/master

path finished, numpy warnings handled
Merge pull request #47 from JimHokanson/master

Working on path feature comparison
Small changes to get the code working for me again
changed @staticmethod to @classmethod
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Merge pull request #48 from waffle-iron/master

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Added Nature methods root file
added Yemini supplemental figures to docs
Update Nature methods
Add more Yemini nature methods docs
Update Nature methods.md
Update Nature methods.md
Update Nature methods.md
Update Morphology.md
Added descriptions to Yemini figures
Update README.md
Update README.md
Add test process gif
Change gif to png