prep 0.11.1

Release 0.11

prep for release

removed docs/ link

exclude the docs from the tarball so the project is not 1MB anymore

bypass a test in Travis

prepping 0.8.1

style

prep for 0.7.1

Using unpinned versions in setup.py

The rational is to avoid getting in the way of the various
tools that force their own pinning.

pip-requirements.txt give the versions we've been testing,
but people are free to try other combos on their own.