Evaluate integration with TravisCI and other cloud services to improve the testing and quality of the library

[evilaliv3]

Evaluate integration of TravisCI and other cloud services in order to execute on commit unit-testing and cross-browser compatibility testing while collecting code coverage and other code quality information.

From a rapid analysis these are these are valuable tools to be integrated:

1. TravisCI as concentrator for running all the tests and other cloud services callbacks
2. Saucelabs for executing browser compatibility testing testing all the browser versions where the polyfills are expected to work
3. Coveralls for collecting code coverage metrics of the tests executed so to keep track of what is currently tested and what is not.
4. CodeClimate for collecting static analysis of the polyfills and have indicators on how to improve them.

[evilaliv3]

Here follows a complete example of the full integration of the tools listed above and of the usefullness of such a complete integration: https://github.com/globaleaks/GlobaLeaks

[inexorabletash]

PRs welcome. This repo is primarily for use in my own hobby projects. If it helps others, great, but I'm not investing significant time in it.