[setup] Lock sphinx to pre 1.7 as mscgen has not been released yet to support it

637328de · Samuel GAIST · 772dcdbd · 637328de
Commit 637328de authored Apr 17, 2018 by Samuel GAIST
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,7 @@ requires = [
    "setuptools",
    "simplejson",
    "six",
-    "sphinx",
+    "sphinx<1.7",
    "sphinxcontrib-mscgen",
    "sphinx-rtd-theme",
    "matplotlib>=1.4",