Merge pull request #29 from krancour/add-zip

feat(image): Add zip package

Author: krancour

rootfs/Dockerfile

@@ -7,6 +7,7 @@ WORKDIR /tmp
 
 RUN apt-get update && apt-get install -y \
   upx \
+  zip \
   --no-install-recommends \
   && rm -rf /var/lib/apt/lists/*