Bases with updates ca certs.

base_32/Dockerfile

@@ -3,6 +3,7 @@ FROM ubuntu:16.04
 RUN dpkg --add-architecture i386
 RUN apt-get update -q
 RUN apt-get -qy --no-install-recommends install \
+        ca-certificates \
         libx11-6:i386 \
         libgl1-mesa-glx:i386 \
         libfontconfig1:i386 \
@@ -13,7 +14,8 @@ RUN apt-get -qy --no-install-recommends install \
         curl \
         unzip
 
-RUN apt-get clean
-RUN rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+RUN update-ca-certificates
+
+RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 RUN echo "Pharo 32bit prerequisities installed."

base_64/Dockerfile

@@ -2,12 +2,14 @@ FROM ubuntu:16.04
 
 RUN apt-get update -q
 RUN apt-get -qy --no-install-recommends install \
+        ca-certificates \
         libfreetype6 \
         libcurl3 \
         curl \
         unzip
 
-RUN apt-get clean
-RUN rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+RUN update-ca-certificates
+
+RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 RUN echo  "Pharo 64bit prerequisities installed."