message: added python3.5
diff: @@ -12,7 +12,8 @@ RUN apt-get update && \
  libsqlite3-dev \
  libsodium-dev \
  cmake \
  - git
  + git \
  + python3.5
  ENV RUST_ARCHIVE=rust-1.16.0-x86_64-unknown-linux-gnu.tar.gz
  ENV RUST_DOWNLOAD_URL=https://static.rust-lang.org/dist/$RUST_ARCHIVE
  