less: override some bootstrap less variables to make headers more compact (waste less space) - make navbar smaller by reducing navbar-height - less space between navbar items by setting a smaller nav-link-padding (and thus no need for a custom navbar-padding-vertical) - make panel headers smaller by reducing panel-heading-padding

# requirements.txt file for use as "pip install -r requirements.txt" as a
# readthedocs compatible alternative to "pip install -e ." which is a working
# alternative to "setup.py develop" which doesn't work with Mercurial 3.7
.