Travis: setup auto-upload to PyPI on tags (#23)
Travis: setup auto-upload to PyPI on tags (#23)

* Travis: setup auto-upload to PyPI on tags

* travis: cd back to TRAVIS_BUILD_DIR

in multibuild's config.sh, the test suite is run from a temporary directory.
so we need to change back to the root of the repository where wheelhouse and dist
directories are located.

mikekap/unicodedata2,mikekap/unicodedata2,mikekap/unicodedata2,mikekap/unicodedata2