Incorrect Anaconda version in Dockerfile

[01010101]

RUN wget https://repo.continuum.io/archive/Anaconda2-5.0.1-Linux-x86_64.sh -P /tmp

Should be

RUN wget https://repo.continuum.io/archive/Anaconda3-5.0.1-Linux-x86_64.sh -P /tmp

[01010101]

Pull request #61

[mingyuliutw]

@01010101 Thanks. I have fixed the issue and a couple of other related issues in the latest commit.