Fixed npm dependency issues
Fixed npm dependency issues

Fixed chai dependency issues.

peterkacinec/engine,peterkacinec/registries,peterkacinec/engine,MaxKarel/engine,tomatell/engine,MaxKarel/engine,MaxKarel/engine,sosik/registries,tomatell/engine,peterkacinec/registries,peterkacinec/registries,sosik/registries,sosik/registries,tomatell/engine,peterkacinec/engine