Update Ale.

sources_non_forked/ale/Dockerfile

@@ -0,0 +1,27 @@
+FROM testbed/vim:20
+
+RUN install_vim -tag v8.0.0027 -build \
+                -tag v8.2.4693 -build \
+                -tag neovim:v0.2.0 -build \
+                -tag neovim:v0.6.1 -build
+
+ENV PACKAGES="\
+    bash \
+    git \
+    python2 \
+    python3 \
+    py3-pip \
+    grep \
+    sed \
+"
+RUN apk --update add $PACKAGES && \
+    rm -rf /var/cache/apk/* /tmp/* /var/tmp/*
+
+RUN pip install vim-vint==0.3.21
+
+RUN git clone https://github.com/junegunn/vader.vim vader && \
+    cd vader && git checkout c6243dd81c98350df4dec608fa972df98fa2a3af
+
+ARG GIT_VERSION
+LABEL Version=${GIT_VERSION}
+LABEL Name=denseanalysis/ale