chore(package): update babel-core to version 6.13.2
chore(package): update babel-core to version 6.13.2

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sendyhalim/keystone,pr1ntr/keystone,Pop-Code/keystone,ONode/keystone,frontyard/keystone,jstockwin/keystone,Yaska/keystone,Pop-Code/keystone,Yaska/keystone,vokal/keystone,pr1ntr/keystone,matthewstyers/keystone,alobodig/keystone,cermati/keystone,matthewstyers/keystone,vokal/keystone,dryna/keystone-twoje-urodziny,danielmahon/keystone,linhanyang/keystone,matthewstyers/keystone,brianjd/keystone,andrewlinfoot/keystone,jstockwin/keystone,rafmsou/keystone,naustudio/keystone,frontyard/keystone,frontyard/keystone,trentmillar/keystone,rafmsou/keystone,brianjd/keystone,benkroeger/keystone,sendyhalim/keystone,Adam14Four/keystone,snowkeeper/keystone,andrewlinfoot/keystone,Adam14Four/keystone,alobodig/keystone,naustudio/keystone,concoursbyappointment/keystoneRedux,dvdcastro/keystone,w01fgang/keystone,ratecity/keystone,snowkeeper/keystone,dryna/keystone-twoje-urodziny,trentmillar/keystone,trentmillar/keystone,vokal/keystone,dvdcastro/keystone,cermati/keystone,andrewlinfoot/keystone,danielmahon/keystone,w01fgang/keystone,ONode/keystone,concoursbyappointment/keystoneRedux,benkroeger/keystone,naustudio/keystone,danielmahon/keystone,ratecity/keystone,benkroeger/keystone,Yaska/keystone