cowerd: create $HOME/Build if needed

Signed-off-by: Christopher Larson <kergoth@gmail.com>
cowerd: default EDITOR to vim, not vi

Signed-off-by: Christopher Larson <kergoth@gmail.com>
cowerd: pass -c to makepkg to clean up

Signed-off-by: Christopher Larson <kergoth@gmail.com>
setup-python: get site dir from python, let pip install setuptools

Signed-off-by: Christopher Larson <kergoth@gmail.com>
setup-python: install wheel, twine, virtualenv, flake8, autopep8, gitifyhg

Signed-off-by: Christopher Larson <kergoth@gmail.com>