BUG: add -h switch to bootstrap_dotfiles; remove set -x
BLD: Add version constant in src/dotfiles/__init__.py
DOC: pdating docs with full Makefile and conf.py from https://github.com/westurner/provis
BLD: bootstrap_dotfiles.sh, PIP_INSTALL --user workarounds, cleanup
DOC: fix link typo
DOC: README.rst content moved into actual documentation
DOC: changelog section underline
CLN: add docs/build and docs/_build to .hgignore
BLD: Makefile, tox.ini, travis.yaml