bump version for release

Version 2.3.5

Version 2.3.4

Version 2.3.3

Version 2.3.2

Merge pull request #137 from sjsrey/2.3.1

[BUG] remove README.rst

Merge pull request #134 from weikang9009/setup

(BUG) missing comma in setup.py

Merge pull request #102 from sjsrey/3.8

REL: 2.2.1 bf release

Merge pull request #95 from sjsrey/master

ENH: bumping version and handle array creation error in join counts

Merge pull request #69 from sjsrey/master

REL: 2.1.1