remove references to pythonhosted.org (issue #293) The pythonhosted service is no longer supported. Update links to point to docs.kallithea-scm.org (which redirects to kallithea.readthedocs.io) While at it, fix the whoosh pythonhosted.org reference as well.

[tox]
minversion = 1.8
envlist = py{26,27}-{pytest,nose}

[testenv]
setenv =
    PYTHONHASHSEED = 0
deps =
    nose: nose
    pytest: pytest
commands =
    nose: nosetests {posargs}
    pytest: py.test {posargs}