TST: Split flake8 into tox env, Sphinx HTML builds

Author: woodb

tox.ini

@@ -1,14 +1,15 @@
 [tox]
-envlist = py27,docs
+envlist = flake8,py27,docs
 
 [testenv]
-deps=
-    pytest>=2.7.2
-    flake8
-commands=
-    py.test
-    flake8
+deps = pytest>=2.7.2
+commands = py.test
+
+[testenv:flake8]
+deps = flake8
+commands = flake8
 
 [testenv:docs]
+changedir = docs
 deps = sphinx
-commands = sphinx-build -W -b linkcheck -d {envtmpdir}/doctrees docs docs/_build/linkcheck
+commands = sphinx-build -W -b html -d {envtmpdir}/doctrees . {envtmpdir}/html