Added cross-env package
Added cross-env package

dbuhrman/extjs-reactor,sencha/extjs-reactor,sencha/extjs-reactor,sencha/extjs-reactor,dbuhrman/extjs-reactor,markbrocato/extjs-reactor,sencha/extjs-reactor,dbuhrman/extjs-reactor,markbrocato/extjs-reactor,markbrocato/extjs-reactor,markbrocato/extjs-reactor,dbuhrman/extjs-reactor