Added new callbacks on TabNavigator.js
Added new callbacks on TabNavigator.js

vrleonel/chico,amireynoso/uxtest,atma/chico,atma/chico,vrleonel/chico,mercadolibre/chico,vrleonel/ml-test,amireynoso/uxtest,vrleonel/ml-test,mercadolibre/chico