NSGA II first beta version

[coveralls]

Pull Request Test Coverage Report for Build 474

• 139 of 143 (97.2%) changed or added relevant lines in 2 files are covered.
• 20 unchanged lines in 8 files lost coverage.
• Overall coverage increased (+0.2%) to 87.895%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
spotpy/algorithms/nsgaii.py	138	142	97.18%
<!--	Total:	139	143	97.2%	-->

Files with Coverage Reduction	New Missed Lines	%
spotpy/algorithms/sa.py	1	82.86%
spotpy/database.py	1	88.46%
spotpy/algorithms/fscabc.py	1	83.33%
spotpy/algorithms/_algorithm.py	2	90.73%
spotpy/parameter.py	3	97.0%
spotpy/algorithms/demcz.py	4	91.35%
spotpy/describe.py	4	86.67%
spotpy/analyser.py	4	87.84%
<!--	Total:	20		-->

Totals
Change from base Build 471:	0.2%
Covered Lines:	4872
Relevant Lines:	5543

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💛 - Coveralls