support building qfs with Docker

[fsareshwala]

GitHub user [chanwit|https://github.com/chanwit] has created an issue on our public [GitHub Issues|https://github.com/quantcast/qfs/issues] list.

This ticket is a mirror of the first post of the public ticket on github. The purpose of this ticket is to have an owner of the public response. The owner is responsible for researching the answer and responding to the public issue in a timely manner.

#61

Issue Description
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This PR adds Dockerfile and a build script to help quickly building QFS with Docker.
To use it, just clone the repository and call "./build.sh". Docker is required for this build process.

The result binaries from the default release configuration will be placed under ~/.bin after the build is successfully.

Signed-off-by: Chanwit Kaewkasi chanwit@gmail.com
{code}