update devel container, pylint script

Dockerfile

@@ -7,6 +7,8 @@ RUN ln -s /usr/include/locale.h /usr/include/xlocale.h
 WORKDIR /usr/src/LEDServer
 RUN pip3 install --upgrade pip
 RUN pip3 install --no-cache-dir numpy 
+RUN pip3 install --no-cache-dir pylint 
+RUN pip3 install --no-cache-dir RPi.GPIO 
 RUN pip3 install --no-cache-dir --upgrade ptvsd 
 # RUN pip3 install --no-cache-dir scipy # scipy is only required by the recorder application
 

run-pylint-docker.sh

@@ -6,7 +6,7 @@ docker run \
     -v "$HOME":"$HOME":ro \
     -u $(id -u) \
     -w "$PWD" \
-    clburlison/pylint:py3-alpine \
+    devel:latest \
     pylint $@
     
 exit $?