RLS: setup.py version=0.2.3
Merge branch 'release/0.2.3'

* release/0.2.3:
  RLS: setup.py version=0.2.3
  DOC: README.rst: https://pypi.python.org/pypi/promiumbookmarks
Merge tag 'v0.2.3' into develop

RLS: promiumbookmarks v0.2.3

* tag 'v0.2.3':
  RLS: setup.py version=0.2.3