chore(travis): Run on 0.12 and iojs.
chore(travis): Run on 0.12 and iojs.

whitneyit/karma-coverage,jamestalmage/karma-coverage,tswaters/karma-coverage,yourowndisaster09/karma-coverage,karma-runner/karma-coverage,nmalaguti/karma-coverage,Dignifiedquire/karma-coverage