Adds config for Travis CI

[ashwamegh]

• Adds a config file for Travis CI for automated testing
• For Deployment : Details needed mentioned in https://docs.travis-ci.com/user/deployment

[ashwamegh]

@CuriousLearner Done reverting changes from my fork of master branch. This branch is clean now.

[CuriousLearner]

Will wait for @theskumar for review on this.

This would be on hold till he comes back!

[shivakrishna9]

Fix #60

In order to prevent multiple PRs for same issues ;)

[CuriousLearner]

@theskumar Can you please review this?

[theskumar]

As said by @SanketDG the build.py would need to updated to support both the reload mode and without it, so it's able to just build and generate the files in non-interactive mode.

Once that is done, there are multiple ways to test the website (automated / manually), let's ignore that fact for now, and I won't go too deep into it. If somebody able to pull-off some test setup say using selenium/phantomjs, very wonder full.

For now the workflow should be:

1. Pull-request is created. Do manually review.
2. Code gets merged to master and code from master branch gets available at https://pythonindia.github.io/inpycon2017/
3. There will be a prod branch, which will updated once master from master, only after master looks good.
4. Whenever code is pushed to prod branch, it will automatically get deployed to server via ssh authentication.

Summarising, the immediate requirement is that if a code is pushed to prod branch is should get deployed live automatically.