Migrate tests to Jasmine 3 driven by Karma

[raphinesse]

This PR does the following:

• Migrate test sources from Jasmine 1 to Jasmine 3 (Closes fixjasmine: CB-12018 : updated tests to work with jasmine and added t… #140)
• New test setup that uses Karma to run tests in Headless Chrome against the build produced by our Grunt task compile
• Remove obsolete Grunt tasks test, cover and all of their dependencies, thus resolving npm audit warnings (Resolves Migrate from jasmine-node to Jasmine 3 #171)

[brodycj]

On Fri, Sep 21, 2018 at 6:15 AM Raphael von der Grün < ***@***.***> wrote: This PR does the following: - Migrate test sources from Jasmine 1 to Jasmine 3 (Closes #140 <#140>) - Setup tests so they are run by Karma in Headless Chrome against the build produced by our Grunt task compile - Remove obsolete Grunt tasks test, cover and all of their dependencies, thus resolving npm audit warnings (Resolves #171 <#171>)

<3 I will probably need 1-2 days to review formally.

…

[brodycj]

My one minor, non-blocking critique is that npm test (using headless Chrome) outputs the following log message:

LOG: 'Could not find cordova.js script tag. Plugin loading may fail.'

I think this is a sign of something that could be done better in our JavaScript, would like to see this tracked in some kind of an "improvement" issue (assuming this PR is actually merged, which I would favor).

I am really happy to see improved test automation and minimal disturbance of src.

@raphinesse please merge!