Moved the new Similarity in 4D to metrics

Close #802. Please merge #830 before this PR
updated changelog
Added version 0.10.0 to all DeprecationWarnings
Fetch upstream and Merge branch 'master' into enh/EvaluationAlgorithms

Conflicts:
	CHANGES
Merge branch 'enh/Similarity4DMetrics' into enh/EvaluationAlgorithms

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Fixed test in new Similarity interface

Also fixed constructor of old interface to throw the DeprecationWarning
Merge branch 'enh/EvaluationAlgorithms' into experimental

Conflicts:
	CHANGES
	nipype/interfaces/nipy/utils.py