Dockerfile version bump

# TODO: Get rid of this when there is a stable release of deepchem.

RUN git clone https://github.com/deepchem/deepchem.git && \

    cd deepchem && \

    git checkout tags/1.1.0 && \

    git checkout tags/1.2.0 && \

    sed -i -- 's/tensorflow$/tensorflow-gpu/g' scripts/install_deepchem_conda.sh && \

    bash scripts/install_deepchem_conda.sh root && \

    pip install tensorflow-gpu==1.0.1 && \