fix(package.json): sinon-chai 2.13 is not compatible with sinon 4.x (#2977)
fix(package.json): sinon-chai 2.13 is not compatible with sinon 4.x (#2977)


johnjbarton/karma,david-garcia-nete/karma,maksimr/karma,maksimr/karma,david-garcia-nete/karma,maksimr/karma,johnjbarton/karma,david-garcia-nete/karma,karma-runner/karma,karma-runner/karma,johnjbarton/karma,johnjbarton/karma,karma-runner/karma,karma-runner/karma