Updated docker container

Updated docker container to include fix in release 4.3

docker/Dockerfile v.4.3

@@ -0,0 +1,17 @@
+# Use the previous version of qlik-py-tools as a parent image
+FROM nabeeloz/qlik-py-tools:4.0
+
+# Set the working directory to /qlik-py-tools/core
+WORKDIR /qlik-py-tools/core
+
+# Copy all files from the core subdirectory into the container
+COPY ./core/* /qlik-py-tools/core/
+
+# Copy modified file for skater
+COPY ./feature_importance.py /usr/local/lib/python3.6/site-packages/skater-1.1.2-py3.6.egg/skater/core/global_interpretation/
+
+# Make port 80 available to the world outside this container
+EXPOSE 80
+
+# Run __main__.py when the container launches
+CMD ["python", "__main__.py"]