Testing setup and pipelines

[murt]

Get testing setup with spectron. This issue should be closed once simple tests complete with coverage and run on travis-ci.

This also includes support for the following cloud based tools:

• travis-ci
• appveyor
• codeclimate
• coveralls
• david-dm

[murt]

This is going pretty good so far the only thing left to test is the automation of the pull requests. There is a greenkeeper.io integration now I'd like to see working before closing but the whole coverage pipeline is going smoothly now all the way to coveralls.io