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

Release 0.16.0

REL: set version to 0.16.0rc1

REL: set version to 0.16.0b2

REL: set version to 0.16.0b1

Release 0.15.1

REL: set version to 0.15.0