DOC: Update CONTRIBUTORS.txt and properly attribute scikit-image
Merge pull request #4 from JDWarner/credit_skimage

DOC: Update CONTRIBUTORS.txt and properly attribute scikit-image
FIX: distance array now only transposed once
Merge pull request #5 from JDWarner/fix_cluster

FIX: distance array now only transposed once
FIX: allow iterable input to cartadd & cartprod

Harmonizes behavior with what is claimed in docstring.
FIX: Error in gauss2mf test (functionality unchanged)
DOC: minor doc formatting fix in skfuzzy.fuzzymf._nearest
Merge pull request #6 from JDWarner/fix_gauss2mf_test

FIX: Error in gauss2mf test (functionality unchanged)
Merge pull request #7 from JDWarner/fix_cartfuncs

FIX: allow iterable input to cartadd & cartprod
Merge pull request #8 from JDWarner/docfix_nearest

DOC: minor doc formatting fix in skfuzzy.fuzzymf._nearest
DOC: clarify docstrings in fuzzy_ops
Merge pull request #9 from JDWarner/fuzzy_ops_commentfix

DOC: clarify docstrings in fuzzy_ops