pin bokeh=0.13 for now

basnijholt · basnijholt · commit 16bf8ee9082a · 2018-10-25T14:00:15.000+02:00
Because it breaks the examples in the docs
diff --git a/docs/environment.yml b/docs/environment.yml
@@ -9,7 +9,7 @@ dependencies:
     - sortedcontainers
     - scipy
     - holoviews
-    - bokeh
+    - bokeh==0.13
     - plotly
     - ipyparallel
     - distributed
