1. Replace our ancient, windows-only jscoverage implementation with
karma-coverage, which works on all platforms and does not require a
separate instrumentation step. You now run coverage by simply typing
`npm run coverage`. This also provides improved results, such as branch
coverage, which the old system did not.
2. Updated Testing Guide
3. Remove old instrument link from index.html
4. Remove jscoverage and related code.

1. Add options from the `test` task to the `coverage` task
2. Run `coverage` instead of `test` on CI (since covereage includes text)
3. Add link to coverage results in index.html and also as part of the
the GitHub deploy information.

1. Auto-generate a index.html with a list of browsers with coverage results
2. Remove `Instrumented` from everywhere since it doesnt exist.
3. Add Coverage to npmignore.