Added Dockerfile.
Copying application source code into docker container. Also run build.
Cabal 1.20.0.4 seems to break a lot of stuffs...
 Also copy config folder in Dockerfile.
Updated README.md - build with Docker.
Clean up Dockerfile and a bunch of stuffs.
password is now mandatory for db.cfg file.
Merge pull request #1 from zalora/docker

Dockerino.