Make RTD warning go away, make PyClean less verbose

Author: bittner

docs/conf.py

@@ -56,4 +56,4 @@
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-html_static_path = ['_static']
+html_static_path = []

tox.ini

@@ -24,7 +24,7 @@ commands =
 description = Remove bytecode and other debris
 skip_install = true
 deps = pyclean
-commands = pyclean {posargs:. --debris --erase docs/_build/**/* docs/_build/ tests/junit-report.xml --yes --verbose}
+commands = pyclean {posargs:. --debris --erase docs/_build/**/* docs/_build/ tests/junit-report.xml --yes}
 
 [testenv:docs]
 description = Build package documentation (HTML)