let "paver html" call make command to have a single entry point into the sphinx world
turn sphinx-build warnings into errors to be more strict
remove unused sphinx and minilib options
rename paver html task to doc_html and add doc_clean task
remove unused Bunch import
update tasks docstrings and use consistent wording, e.g. *docs* instead of *documentation*
Merge pull request #17 from benjixx/sphinx-single-entrypoint

Sphinx single entrypoint