Merge pull request #575 from plotly/fix-floris-apps

#patch
Fix floris-flow

Former-commit-id: 47de29c

Author: Xing Han Lu

apps/dash-floris-flow/requirements.txt

@@ -12,7 +12,7 @@ dash-core-components==1.15.0
 dash-html-components==1.1.2
 dash-renderer==1.9.0
 dash-table==4.11.2
-git+https://github.com/plotly/dash-vtk@6e1d03320574ab0a292b50a0a284065726bcea95
+dash-vtk==0.0.6
 Flask==1.1.2
 Flask-Compress==1.8.0
 FLORIS==2.2.4