maint: Update requirements

maint/requirements.txt

@@ -1,30 +1,40 @@
-alabaster==0.7.7
-autopep8==1.2.2
-Babel==2.3.2
-coverage==4.0.3
-docutils==0.12
-flake8==2.5.4
-imagesize==0.7.0
-Jinja2==2.8
-MarkupSafe==0.23
-mccabe==0.4.0
+alabaster==0.7.10
+appdirs==1.4.3
+args==0.1.0
+attrs==16.3.0
+Automat==0.5.0
+autopep8==1.3.1
+Babel==2.4.0
+clint==0.5.1
+constantly==15.1.0
+coverage==4.3.4
+docutils==0.13.1
+flake8==3.3.0
+imagesize==0.7.1
+incremental==16.10.1
+Jinja2==2.9.6
+MarkupSafe==1.0
+mccabe==0.6.1
+packaging==16.8
 pep8==1.7.0
-pkginfo==1.2.1
-pluggy==0.3.1
-py==1.4.31
-pycares==1.0.0
+pkginfo==1.4.1
+pluggy==0.4.0
+py==1.4.33
+pycares==2.1.1
+pycodestyle==2.3.1
 pycurl==7.43.0
-pyflakes==1.1.0
-Pygments==2.1.3
-pytz==2016.3
-requests==2.9.1
-requests-toolbelt==0.6.0
+pyflakes==1.5.0
+Pygments==2.2.0
+pyparsing==2.2.0
+pytz==2017.2
+requests==2.13.0
+requests-toolbelt==0.7.1
 six==1.10.0
 snowballstemmer==1.2.1
-Sphinx==1.4
-sphinx-rtd-theme==0.1.9
-tox==2.3.1
-twine==1.6.5
-Twisted==16.1.0
-virtualenv==15.0.1
-zope.interface==4.1.3
+Sphinx==1.5.5
+sphinx-rtd-theme==0.2.4
+tox==2.7.0
+twine==1.8.1
+Twisted==17.1.0
+virtualenv==15.1.0
+zope.interface==4.3.3