Bump NPM version to 0.6.3 in preparation for publishing.
Bump NPM version to 0.6.3 in preparation for publishing.

ipeychev/recast,fkling/recast,rwaldron/recast,benjamn/recast,cpojer/recast,kassens/recast,stefanpenner/recast,benjamn/recast,ersengultepe/recast,shumov/recast,marcioj/recast,kyldvs/recast,benjamn/recast