Install latest sphinx version with pip

jorisvandenbossche · jorisvandenbossche · commit d9af9452b600 · 2016-01-23T15:56:20.000+01:00
diff --git a/ci/build_docs.sh b/ci/build_docs.sh
@@ -18,6 +18,7 @@ if [ x"$DOC_BUILD" != x"" ]; then
 
     source activate pandas
     conda install -n pandas -c r r rpy2 --yes
+    pip install sphinx -U
 
     time sudo apt-get $APT_ARGS install dvipng
 
diff --git a/ci/requirements-2.7_DOC_BUILD.run b/ci/requirements-2.7_DOC_BUILD.run
@@ -1,4 +1,3 @@
-sphinx=1.2.3
 ipython=3.2.1
 nbconvert
 matplotlib
