Pin alabaster to latest version 0.7.9

pyup-bot · pyup-bot · commit e803ee354857 · 2016-12-22T12:48:28.000-06:00
diff --git a/requirements/doc.txt b/requirements/doc.txt
@@ -1,4 +1,4 @@
 docutils==0.12
 releases==1.2.1  # updated from 1.2.0
 sphinx
-alabaster
+alabaster==0.7.9
