REL: Release 0.15.0

Tag for the 0.15.0b2 release

MAINT remove residual sparsefuncs*.so when compiling

The sparsefuncs -> sparsefuncs_fast rename in bbb8f1d has caused a lot of errors being reported due to dirty working directories. This attempts to avoid that.

Branching 0.15.X to prepare the 0.15.0b1 release

REL: Release 0.14.1

Minor bug fix release to restore proper behavior of setup.py

0.14 release

REL: 0.14a1 Release candidate for 0.14

REL increased version number, added whatsnew

website: fix for survey bar

DOC updated commit counts.