Updated numpy to 1.16.6

The pipeline was crashing due a numpy error that is fixed in version >1.16.
meqtrees_cattery was not happy with numpy > 1.16 due his specification:
pkg_resources.ContextualVersionConflict: (numpy 1.16.6), Requirement.parse('numpy<=1.16'), set(['meqtrees-cattery']))
Edited Dockerfile to change the version on the METADATA

.gitignore

+
+ddf2/DDFacet/
+ddf2/killMS/

ddf2/Dockerfile

@@ -32,16 +32,18 @@ COPY DDFacet /opt/DDFacet
 RUN cp /opt/ddf-pipeline/misc/setup.cfg /opt/DDFacet/ # Fix compile options
 RUN python -m pip install -U pip setuptools wheel
 RUN pip install -U pip setuptools wheel
-RUN python -m pip install numpy==1.16 bdsf==1.8.15 emcee
+RUN python -m pip install numpy==1.16.6 bdsf==1.8.15 emcee
 
 RUN python -m pip install pybind11 future pyregion sshtunnel pymysql psutil
 RUN python -m pip install -U "/opt/DDFacet/[dft-support,moresane-support,testing-requirements,fits-beam-support]"
 
 RUN cd /opt/DDFacet && rm -rf /opt/DDFacet/Dcbuild && python setup.py build
 
-RUN python -m pip install bdsf==1.8.15
+RUN python -m pip install bdsf==1.8.15 numpy==1.16.6
 RUN sed -e "s|INSTALLDIR|/opt|" /opt/ddf-pipeline/misc/DDF.sh > /opt/DDFacet/init.sh
 
+RUN  sed 's/numpy (<=1.16)/numpy (<=1.16.6)/g' /usr/local/lib/python2.7/dist-packages/meqtrees_cattery-1.7.0.dist-info/METADATA >  /usr/local/lib/python2.7/dist-packages/meqtrees_cattery-1.7.0.dist-info/METADATA
+
 RUN cd /opt && git clone https://www.ict.inaf.it/gitlab/lofarit/container-data.git
 
 #USER lofar