Bump NPM version to 0.5.3 in preparation for publishing.
Bump NPM version to 0.5.3 in preparation for publishing.

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