chore(Travis): set version of npm to 1.4.28 for shrinkwrap to work properly
chore(Travis): set version of npm to 1.4.28 for shrinkwrap to work properly

ozone-development/ozp-hud,aml-development/ozp-hud,ozone-development/ozp-hud,aml-development/ozp-hud,ozone-development/ozp-hud,aml-development/ozp-hud