DOC/REL: clean-up and restructure v0.15.0 whatsnew file (GH8477)#8586

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jorisvandenbossche:doc-whatsnew

Oct 27, 2014

Commits on Oct 27, 2014

DOC/REL: clean-up and restructure v0.15.0 whatsnew file (GH8477)
jorisvandenbossche
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