Updated docker installer and environment*.yml

tests/CI_docker/context/environment_py_tools_ds.yml

@@ -15,6 +15,7 @@ dependencies:
   - lxml
   - geopandas
   - ipython
+  - conda-build  # for conda deployment
   - pip:
     - dicttoxml
     - jsmin

tests/CI_docker/context/py_tools_ds_ci.docker

 FROM gms_base_centos:pinned_v0.1
-# patch: conda skeleton will not work without: # https://stackoverflow.com/questions/40392161/building-conda-skeleton-from-pypi-package-throws-error
-# RUN yum update -y && \
-#     yum install -y patch
-
-# conda-build
+RUN yum update -y && \
+    yum install -y patch  # patch: conda skeleton will not work without: # https://stackoverflow.com/questions/40392161/building-conda-skeleton-from-pypi-package-throws-error
 
 # copy some needed stuff to /root
 COPY *.yml /root/