Add "karma-coverage" for unit-test code-coverage to devDepencies
Add "karma-coverage" for unit-test code-coverage to devDepencies

 Code coverage is relevant to for refactoring purposes see
 bluesmoon/boomerang issue #40 for more information.

levexis/boomerang,FredXue/boomerang,lognormal/boomerang,sdgdsffdsfff/boomerang,levexis/boomerang,lognormal/boomerang,FredXue/boomerang,sdgdsffdsfff/boomerang