Merge pull request #3317 from pypa/docs/update-deps

Update docs dependencies

docs/requirements.txt

@@ -1,28 +1,26 @@
 alabaster==0.7.10
-Babel==2.5.0
-certifi==2017.7.27.1
+Babel==2.6.0
+certifi==2018.10.15
 chardet==3.0.4
-click==6.7
+click==7.0
 docutils==0.14
 first==2.0.1
-idna==2.6
-imagesize==0.7.1
+idna==2.7
+imagesize==1.1.0
 Jinja2==2.10
-MarkupSafe==1.0
-pbr==3.1.1
-pip-tools==1.9.0
+MarkupSafe==1.1.0
+pbr==5.1.1
 -e .
-Pygments==2.2.0
+Pygments==2.3.0
 pythonz-bd==1.11.4
-pytz==2017.2
-requests==2.20.0
+pytz==2018.5
+requests==2.20.1
 resumable-urlretrieve==0.1.5
-semver==2.7.8
-six==1.10.0
+six==1.11.0
 snowballstemmer==1.2.1
 Sphinx==1.6.3
-sphinx-click==1.2.0
-sphinxcontrib-websupport==1.0.1
-urllib3==1.22
-virtualenv==15.1.0
-virtualenv-clone==0.2.6
+sphinx-click==1.3.0
+sphinxcontrib-websupport==1.1.0
+urllib3==1.24.1
+virtualenv==16.1.0
+virtualenv-clone==0.4.0