Reformat npm dependencies in alphabetical order

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Specify latest karma-coverage in package.json

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Configure karma-coverage with html reporter

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Configure cobertura coverage reporter for Jenkins

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Merge pull request #1368 from opf/feature/karma-coverage

Configure code coverage analysis with Karma