DOC: improve docs, partially addressing issue #285
DOC: document returned object
TST: lengths are supposed to be equal, not almost equal
DOC: More docs on CA
DOC: references, notes about implementation for RDA
DOC: Link documentation of related methods.
DOC: PCoA scores. Closes issue #207
STY: whitespace
DOC: Move OrdinationResults See Also to scores method.
Merge pull request #298 from Jorge-C/ordination

Ordination