REL: Scipy 0.18.0-1 --- same content as v0.18.0 but new tag for Zenodo

REL: tag scipy 0.18.0

REL: release candidate 2 for 0.18.0

REL: release candidate 0.18.0rc1

REL: release 0.17.1

release 0.17.0

REL: tag version 0.17.0rc2

a first release candidate for v0.17.0

Merge pull request scipy#5538 from aolsux/patch-1

DOC: signal: fix find_peaks_cwt documentation

Scipy 0.16.1 release