Made Node tests support multiple versions and set the Node default version to 4 everywhere possible
diff --git a/tools/dockerfile/test/multilang_jessie_x64/Dockerfile b/tools/dockerfile/test/multilang_jessie_x64/Dockerfile
index 71ebf2b..5c3f7740 100644
--- a/tools/dockerfile/test/multilang_jessie_x64/Dockerfile
+++ b/tools/dockerfile/test/multilang_jessie_x64/Dockerfile
@@ -90,8 +90,11 @@
# Install nvm
RUN touch .profile
RUN curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.25.4/install.sh | bash
+# Install all versions of node that we want to test
RUN /bin/bash -l -c "nvm install 0.12 && npm config set cache /tmp/npm-cache"
-
+RUN /bin/bash -l -c "nvm install 4 && npm config set cache /tmp/npm-cache"
+RUN /bin/bash -l -c "nvm install 5 && npm config set cache /tmp/npm-cache"
+RUN /bin/bash -l -c "nvm alias default 4"
#=================
# PHP dependencies